/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-bad-ring.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-03 17:17:35,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-03 17:17:35,126 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-03 17:17:35,183 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-03 17:17:35,184 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-03 17:17:35,186 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-03 17:17:35,189 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-03 17:17:35,190 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-03 17:17:35,191 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-03 17:17:35,193 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-03 17:17:35,194 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-03 17:17:35,194 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2022-03-03 17:17:35,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-03 17:17:35,209 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-03 17:17:35,210 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-03 17:17:35,211 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-03-03 17:17:35,224 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-03 17:17:35,224 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-03 17:17:35,225 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-03 17:17:35,225 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-03 17:17:35,225 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-03 17:17:35,225 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-03 17:17:35,226 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-03 17:17:35,226 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-03 17:17:35,226 INFO L138 SettingsManager]: * Use SBE=true [2022-03-03 17:17:35,226 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-03 17:17:35,227 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-03 17:17:35,227 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-03 17:17:35,227 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-03 17:17:35,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-03 17:17:35,227 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-03 17:17:35,227 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-03 17:17:35,227 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-03 17:17:35,227 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-03 17:17:35,227 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-03 17:17:35,228 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-03 17:17:35,228 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-03 17:17:35,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-03 17:17:35,228 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-03 17:17:35,228 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-03 17:17:35,229 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-03 17:17:35,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 17:17:35,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-03 17:17:35,229 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-03 17:17:35,229 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-03 17:17:35,229 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-03 17:17:35,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-03 17:17:35,230 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-03 17:17:35,230 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-03 17:17:35,230 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-03 17:17:35,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-03 17:17:35,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-03 17:17:35,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-03 17:17:35,452 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-03 17:17:35,452 INFO L275 PluginConnector]: CDTParser initialized [2022-03-03 17:17:35,453 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-ring.wvr.c [2022-03-03 17:17:35,489 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d34681756/c77aa4ca3c254f89a4fd94a3ea92fd24/FLAG0362e01cc [2022-03-03 17:17:35,812 INFO L306 CDTParser]: Found 1 translation units. [2022-03-03 17:17:35,813 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-ring.wvr.c [2022-03-03 17:17:35,822 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d34681756/c77aa4ca3c254f89a4fd94a3ea92fd24/FLAG0362e01cc [2022-03-03 17:17:36,217 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d34681756/c77aa4ca3c254f89a4fd94a3ea92fd24 [2022-03-03 17:17:36,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-03 17:17:36,220 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-03 17:17:36,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-03 17:17:36,228 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-03 17:17:36,230 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-03 17:17:36,230 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 05:17:36" (1/1) ... [2022-03-03 17:17:36,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@309fd3a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:17:36, skipping insertion in model container [2022-03-03 17:17:36,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 05:17:36" (1/1) ... [2022-03-03 17:17:36,236 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-03 17:17:36,260 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-03 17:17:36,463 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-ring.wvr.c[3947,3960] [2022-03-03 17:17:36,470 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-03 17:17:36,480 INFO L203 MainTranslator]: Completed pre-run [2022-03-03 17:17:36,520 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-ring.wvr.c[3947,3960] [2022-03-03 17:17:36,522 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-03 17:17:36,535 INFO L208 MainTranslator]: Completed translation [2022-03-03 17:17:36,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:17:36 WrapperNode [2022-03-03 17:17:36,536 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-03 17:17:36,537 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-03 17:17:36,538 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-03 17:17:36,538 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-03 17:17:36,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:17:36" (1/1) ... [2022-03-03 17:17:36,558 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:17:36" (1/1) ... [2022-03-03 17:17:36,594 INFO L137 Inliner]: procedures = 25, calls = 61, calls flagged for inlining = 16, calls inlined = 20, statements flattened = 315 [2022-03-03 17:17:36,594 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-03 17:17:36,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-03 17:17:36,595 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-03 17:17:36,595 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-03 17:17:36,601 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:17:36" (1/1) ... [2022-03-03 17:17:36,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:17:36" (1/1) ... [2022-03-03 17:17:36,610 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:17:36" (1/1) ... [2022-03-03 17:17:36,610 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:17:36" (1/1) ... [2022-03-03 17:17:36,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:17:36" (1/1) ... [2022-03-03 17:17:36,634 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:17:36" (1/1) ... [2022-03-03 17:17:36,635 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:17:36" (1/1) ... [2022-03-03 17:17:36,637 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-03 17:17:36,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-03 17:17:36,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-03 17:17:36,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-03 17:17:36,652 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:17:36" (1/1) ... [2022-03-03 17:17:36,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 17:17:36,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:17:36,697 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-03 17:17:36,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-03 17:17:36,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-03 17:17:36,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-03 17:17:36,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-03 17:17:36,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-03 17:17:36,746 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-03 17:17:36,746 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-03 17:17:36,746 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-03 17:17:36,746 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-03 17:17:36,747 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-03 17:17:36,747 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-03 17:17:36,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-03 17:17:36,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-03 17:17:36,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-03 17:17:36,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-03 17:17:36,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-03 17:17:36,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-03 17:17:36,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-03 17:17:36,749 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-03 17:17:36,873 INFO L234 CfgBuilder]: Building ICFG [2022-03-03 17:17:36,874 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-03 17:17:37,168 INFO L275 CfgBuilder]: Performing block encoding [2022-03-03 17:17:37,342 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-03 17:17:37,343 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-03-03 17:17:37,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 05:17:37 BoogieIcfgContainer [2022-03-03 17:17:37,345 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-03 17:17:37,346 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-03 17:17:37,346 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-03 17:17:37,353 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-03 17:17:37,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 05:17:36" (1/3) ... [2022-03-03 17:17:37,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@236ac0cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 05:17:37, skipping insertion in model container [2022-03-03 17:17:37,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:17:36" (2/3) ... [2022-03-03 17:17:37,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@236ac0cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 05:17:37, skipping insertion in model container [2022-03-03 17:17:37,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 05:17:37" (3/3) ... [2022-03-03 17:17:37,356 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-bad-ring.wvr.c [2022-03-03 17:17:37,360 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-03 17:17:37,360 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-03 17:17:37,361 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-03 17:17:37,361 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-03 17:17:37,425 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,426 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,426 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,426 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,426 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,426 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,426 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,427 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,427 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,427 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,427 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,427 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,427 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,427 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,431 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,432 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,432 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,432 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,432 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,432 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,433 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,433 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,433 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,433 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,433 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,433 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,435 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,435 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,435 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,435 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,435 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,435 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,436 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,436 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,436 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,436 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,436 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,436 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,436 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,436 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,436 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,437 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,437 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,437 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,437 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,437 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,437 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,438 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,438 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,438 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,438 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,438 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,438 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,438 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,439 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,439 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,439 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,439 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,440 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~s~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,440 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~s~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,440 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,440 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,440 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,440 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,440 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,440 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,440 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,441 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,441 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,441 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,441 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,441 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,441 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,441 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,442 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,442 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,442 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,442 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,442 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,442 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,442 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,442 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,442 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,443 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,444 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,444 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,445 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,447 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,449 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,449 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,450 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,450 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~s~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,450 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~s~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,450 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,450 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~s~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,450 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~s~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,450 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,451 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,451 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,451 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,451 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,451 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,451 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,451 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,451 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,452 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,452 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,452 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,452 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,452 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,452 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,452 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,452 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,460 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,460 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,460 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,460 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,460 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,460 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,460 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,461 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,461 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,461 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,461 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~short18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,461 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,461 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,461 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,461 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,462 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,462 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,462 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~short18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,462 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,463 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,463 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,463 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,463 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,463 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,463 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,463 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,463 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,463 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,463 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,466 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,466 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,466 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,466 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,466 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,466 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~s~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,466 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,466 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,466 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,466 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,466 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,467 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,467 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,467 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,467 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,467 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~short18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,467 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,467 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,468 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,468 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,468 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,468 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,469 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,469 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,469 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,469 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,469 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,469 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,469 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,469 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,469 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,469 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,469 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,469 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,470 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,470 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,470 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:17:37,472 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-03 17:17:37,513 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-03 17:17:37,521 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-03 17:17:37,521 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-03 17:17:37,534 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 255 places, 267 transitions, 558 flow [2022-03-03 17:17:37,839 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7033 states, 7032 states have (on average 3.9591865756541527) internal successors, (27841), 7032 states have internal predecessors, (27841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:17:37,876 INFO L276 IsEmpty]: Start isEmpty. Operand has 7033 states, 7032 states have (on average 3.9591865756541527) internal successors, (27841), 7032 states have internal predecessors, (27841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:17:37,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-03-03 17:17:37,937 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:17:37,938 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:17:37,939 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:17:37,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:17:37,945 INFO L85 PathProgramCache]: Analyzing trace with hash 64630819, now seen corresponding path program 1 times [2022-03-03 17:17:37,952 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:17:37,953 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804388864] [2022-03-03 17:17:37,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:17:37,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:17:38,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:17:38,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:17:38,150 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:17:38,150 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804388864] [2022-03-03 17:17:38,151 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804388864] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:17:38,151 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:17:38,151 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-03 17:17:38,152 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988613334] [2022-03-03 17:17:38,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:17:38,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-03 17:17:38,155 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:17:38,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-03 17:17:38,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-03 17:17:38,201 INFO L87 Difference]: Start difference. First operand has 7033 states, 7032 states have (on average 3.9591865756541527) internal successors, (27841), 7032 states have internal predecessors, (27841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 95.5) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:17:38,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:17:38,391 INFO L93 Difference]: Finished difference Result 7033 states and 24830 transitions. [2022-03-03 17:17:38,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 17:17:38,394 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 95.5) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 191 [2022-03-03 17:17:38,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:17:38,462 INFO L225 Difference]: With dead ends: 7033 [2022-03-03 17:17:38,465 INFO L226 Difference]: Without dead ends: 7025 [2022-03-03 17:17:38,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-03 17:17:38,472 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 17:17:38,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 224 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 17:17:38,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7025 states. [2022-03-03 17:17:38,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7025 to 7025. [2022-03-03 17:17:38,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7025 states, 7024 states have (on average 3.533883826879271) internal successors, (24822), 7024 states have internal predecessors, (24822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:17:38,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7025 states to 7025 states and 24822 transitions. [2022-03-03 17:17:38,805 INFO L78 Accepts]: Start accepts. Automaton has 7025 states and 24822 transitions. Word has length 191 [2022-03-03 17:17:38,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:17:38,806 INFO L470 AbstractCegarLoop]: Abstraction has 7025 states and 24822 transitions. [2022-03-03 17:17:38,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 95.5) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:17:38,807 INFO L276 IsEmpty]: Start isEmpty. Operand 7025 states and 24822 transitions. [2022-03-03 17:17:38,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-03-03 17:17:38,829 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:17:38,830 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:17:38,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-03 17:17:38,830 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:17:38,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:17:38,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1257954073, now seen corresponding path program 1 times [2022-03-03 17:17:38,832 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:17:38,832 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970118881] [2022-03-03 17:17:38,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:17:38,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:17:39,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:17:39,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:17:39,197 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:17:39,198 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970118881] [2022-03-03 17:17:39,198 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970118881] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:17:39,198 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:17:39,198 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 17:17:39,198 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459716956] [2022-03-03 17:17:39,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:17:39,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 17:17:39,199 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:17:39,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 17:17:39,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-03 17:17:39,200 INFO L87 Difference]: Start difference. First operand 7025 states and 24822 transitions. Second operand has 6 states, 6 states have (on average 33.166666666666664) internal successors, (199), 6 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:17:39,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:17:39,406 INFO L93 Difference]: Finished difference Result 9883 states and 34057 transitions. [2022-03-03 17:17:39,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-03 17:17:39,407 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 33.166666666666664) internal successors, (199), 6 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 199 [2022-03-03 17:17:39,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:17:39,451 INFO L225 Difference]: With dead ends: 9883 [2022-03-03 17:17:39,451 INFO L226 Difference]: Without dead ends: 7031 [2022-03-03 17:17:39,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-03-03 17:17:39,453 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 392 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:17:39,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [392 Valid, 775 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:17:39,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7031 states. [2022-03-03 17:17:39,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7031 to 7026. [2022-03-03 17:17:39,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7026 states, 7025 states have (on average 3.533523131672598) internal successors, (24823), 7025 states have internal predecessors, (24823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:17:39,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7026 states to 7026 states and 24823 transitions. [2022-03-03 17:17:39,659 INFO L78 Accepts]: Start accepts. Automaton has 7026 states and 24823 transitions. Word has length 199 [2022-03-03 17:17:39,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:17:39,661 INFO L470 AbstractCegarLoop]: Abstraction has 7026 states and 24823 transitions. [2022-03-03 17:17:39,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 33.166666666666664) internal successors, (199), 6 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:17:39,662 INFO L276 IsEmpty]: Start isEmpty. Operand 7026 states and 24823 transitions. [2022-03-03 17:17:39,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-03-03 17:17:39,680 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:17:39,680 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:17:39,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-03 17:17:39,681 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:17:39,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:17:39,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1530199539, now seen corresponding path program 1 times [2022-03-03 17:17:39,681 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:17:39,681 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099672521] [2022-03-03 17:17:39,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:17:39,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:17:39,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:17:39,956 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 17:17:39,956 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:17:39,956 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099672521] [2022-03-03 17:17:39,957 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099672521] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:17:39,957 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:17:39,957 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 17:17:39,957 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694945494] [2022-03-03 17:17:39,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:17:39,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-03 17:17:39,958 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:17:39,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-03 17:17:39,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-03 17:17:39,959 INFO L87 Difference]: Start difference. First operand 7026 states and 24823 transitions. Second operand has 7 states, 7 states have (on average 29.428571428571427) internal successors, (206), 7 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:17:40,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:17:40,113 INFO L93 Difference]: Finished difference Result 9029 states and 30546 transitions. [2022-03-03 17:17:40,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 17:17:40,114 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 29.428571428571427) internal successors, (206), 7 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 206 [2022-03-03 17:17:40,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:17:40,193 INFO L225 Difference]: With dead ends: 9029 [2022-03-03 17:17:40,193 INFO L226 Difference]: Without dead ends: 7284 [2022-03-03 17:17:40,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-03-03 17:17:40,199 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 269 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:17:40,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 785 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:17:40,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7284 states. [2022-03-03 17:17:40,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7284 to 7279. [2022-03-03 17:17:40,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7279 states, 7278 states have (on average 3.4741687276724376) internal successors, (25285), 7278 states have internal predecessors, (25285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:17:40,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7279 states to 7279 states and 25285 transitions. [2022-03-03 17:17:40,449 INFO L78 Accepts]: Start accepts. Automaton has 7279 states and 25285 transitions. Word has length 206 [2022-03-03 17:17:40,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:17:40,450 INFO L470 AbstractCegarLoop]: Abstraction has 7279 states and 25285 transitions. [2022-03-03 17:17:40,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 29.428571428571427) internal successors, (206), 7 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:17:40,450 INFO L276 IsEmpty]: Start isEmpty. Operand 7279 states and 25285 transitions. [2022-03-03 17:17:40,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-03-03 17:17:40,472 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:17:40,472 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:17:40,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-03 17:17:40,473 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:17:40,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:17:40,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1262822431, now seen corresponding path program 1 times [2022-03-03 17:17:40,474 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:17:40,474 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578553129] [2022-03-03 17:17:40,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:17:40,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:17:40,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:17:40,651 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-03 17:17:40,651 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:17:40,651 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578553129] [2022-03-03 17:17:40,651 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578553129] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:17:40,651 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:17:40,651 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-03 17:17:40,652 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667055143] [2022-03-03 17:17:40,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:17:40,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-03 17:17:40,653 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:17:40,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-03 17:17:40,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-03 17:17:40,653 INFO L87 Difference]: Start difference. First operand 7279 states and 25285 transitions. Second operand has 5 states, 5 states have (on average 42.6) internal successors, (213), 5 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:17:40,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:17:40,796 INFO L93 Difference]: Finished difference Result 11487 states and 40044 transitions. [2022-03-03 17:17:40,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-03 17:17:40,797 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.6) internal successors, (213), 5 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 213 [2022-03-03 17:17:40,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:17:40,887 INFO L225 Difference]: With dead ends: 11487 [2022-03-03 17:17:40,887 INFO L226 Difference]: Without dead ends: 9215 [2022-03-03 17:17:40,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-03-03 17:17:40,894 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 157 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:17:40,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 667 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:17:40,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9215 states. [2022-03-03 17:17:41,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9215 to 7763. [2022-03-03 17:17:41,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7763 states, 7762 states have (on average 3.479902087090956) internal successors, (27011), 7762 states have internal predecessors, (27011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:17:41,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7763 states to 7763 states and 27011 transitions. [2022-03-03 17:17:41,148 INFO L78 Accepts]: Start accepts. Automaton has 7763 states and 27011 transitions. Word has length 213 [2022-03-03 17:17:41,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:17:41,148 INFO L470 AbstractCegarLoop]: Abstraction has 7763 states and 27011 transitions. [2022-03-03 17:17:41,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.6) internal successors, (213), 5 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:17:41,149 INFO L276 IsEmpty]: Start isEmpty. Operand 7763 states and 27011 transitions. [2022-03-03 17:17:41,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-03-03 17:17:41,183 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:17:41,184 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:17:41,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-03 17:17:41,184 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:17:41,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:17:41,184 INFO L85 PathProgramCache]: Analyzing trace with hash -237404023, now seen corresponding path program 1 times [2022-03-03 17:17:41,184 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:17:41,184 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565294086] [2022-03-03 17:17:41,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:17:41,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:17:41,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:17:41,276 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-03 17:17:41,276 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:17:41,276 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565294086] [2022-03-03 17:17:41,276 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565294086] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:17:41,276 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:17:41,276 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 17:17:41,276 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256577319] [2022-03-03 17:17:41,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:17:41,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 17:17:41,277 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:17:41,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 17:17:41,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 17:17:41,277 INFO L87 Difference]: Start difference. First operand 7763 states and 27011 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:17:41,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:17:41,346 INFO L93 Difference]: Finished difference Result 6173 states and 21632 transitions. [2022-03-03 17:17:41,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 17:17:41,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 220 [2022-03-03 17:17:41,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:17:41,368 INFO L225 Difference]: With dead ends: 6173 [2022-03-03 17:17:41,368 INFO L226 Difference]: Without dead ends: 6173 [2022-03-03 17:17:41,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 17:17:41,369 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 47 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 17:17:41,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 381 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 17:17:41,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6173 states. [2022-03-03 17:17:41,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6173 to 6173. [2022-03-03 17:17:41,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6173 states, 6172 states have (on average 3.5048606610499027) internal successors, (21632), 6172 states have internal predecessors, (21632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:17:41,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6173 states to 6173 states and 21632 transitions. [2022-03-03 17:17:41,581 INFO L78 Accepts]: Start accepts. Automaton has 6173 states and 21632 transitions. Word has length 220 [2022-03-03 17:17:41,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:17:41,582 INFO L470 AbstractCegarLoop]: Abstraction has 6173 states and 21632 transitions. [2022-03-03 17:17:41,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:17:41,582 INFO L276 IsEmpty]: Start isEmpty. Operand 6173 states and 21632 transitions. [2022-03-03 17:17:41,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-03-03 17:17:41,595 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:17:41,595 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:17:41,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-03 17:17:41,596 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:17:41,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:17:41,596 INFO L85 PathProgramCache]: Analyzing trace with hash -974156201, now seen corresponding path program 2 times [2022-03-03 17:17:41,597 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:17:41,597 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057123193] [2022-03-03 17:17:41,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:17:41,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:17:41,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:17:41,713 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-03 17:17:41,713 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:17:41,713 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057123193] [2022-03-03 17:17:41,713 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057123193] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:17:41,714 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:17:41,714 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 17:17:41,714 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679326705] [2022-03-03 17:17:41,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:17:41,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 17:17:41,714 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:17:41,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 17:17:41,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-03 17:17:41,715 INFO L87 Difference]: Start difference. First operand 6173 states and 21632 transitions. Second operand has 6 states, 6 states have (on average 36.666666666666664) internal successors, (220), 6 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:17:41,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:17:41,825 INFO L93 Difference]: Finished difference Result 6744 states and 23072 transitions. [2022-03-03 17:17:41,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 17:17:41,825 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 36.666666666666664) internal successors, (220), 6 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 220 [2022-03-03 17:17:41,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:17:41,844 INFO L225 Difference]: With dead ends: 6744 [2022-03-03 17:17:41,845 INFO L226 Difference]: Without dead ends: 6179 [2022-03-03 17:17:41,845 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:17:41,845 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 113 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:17:41,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 764 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:17:41,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6179 states. [2022-03-03 17:17:41,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6179 to 6174. [2022-03-03 17:17:41,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6174 states, 6173 states have (on average 3.5044548841730117) internal successors, (21633), 6173 states have internal predecessors, (21633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:17:42,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6174 states to 6174 states and 21633 transitions. [2022-03-03 17:17:42,067 INFO L78 Accepts]: Start accepts. Automaton has 6174 states and 21633 transitions. Word has length 220 [2022-03-03 17:17:42,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:17:42,067 INFO L470 AbstractCegarLoop]: Abstraction has 6174 states and 21633 transitions. [2022-03-03 17:17:42,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 36.666666666666664) internal successors, (220), 6 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:17:42,068 INFO L276 IsEmpty]: Start isEmpty. Operand 6174 states and 21633 transitions. [2022-03-03 17:17:42,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-03 17:17:42,083 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:17:42,083 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:17:42,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-03 17:17:42,083 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:17:42,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:17:42,084 INFO L85 PathProgramCache]: Analyzing trace with hash -833363831, now seen corresponding path program 1 times [2022-03-03 17:17:42,084 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:17:42,084 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624940231] [2022-03-03 17:17:42,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:17:42,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:17:42,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:17:42,234 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-03 17:17:42,234 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:17:42,234 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624940231] [2022-03-03 17:17:42,234 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624940231] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 17:17:42,235 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450088171] [2022-03-03 17:17:42,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:17:42,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:17:42,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:17:42,237 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 17:17:42,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-03 17:17:42,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:17:42,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 20 conjunts are in the unsatisfiable core [2022-03-03 17:17:42,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 17:17:43,120 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-03 17:17:43,120 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 17:17:43,178 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2022-03-03 17:17:43,854 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-03 17:17:43,855 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1450088171] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 17:17:43,855 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 17:17:43,855 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 25 [2022-03-03 17:17:43,855 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376300363] [2022-03-03 17:17:43,855 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 17:17:43,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-03 17:17:43,856 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:17:43,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-03 17:17:43,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=480, Unknown=0, NotChecked=0, Total=600 [2022-03-03 17:17:43,857 INFO L87 Difference]: Start difference. First operand 6174 states and 21633 transitions. Second operand has 25 states, 25 states have (on average 15.2) internal successors, (380), 25 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:17:44,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:17:44,391 INFO L93 Difference]: Finished difference Result 11553 states and 39683 transitions. [2022-03-03 17:17:44,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-03 17:17:44,392 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 15.2) internal successors, (380), 25 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-03-03 17:17:44,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:17:44,406 INFO L225 Difference]: With dead ends: 11553 [2022-03-03 17:17:44,407 INFO L226 Difference]: Without dead ends: 4012 [2022-03-03 17:17:44,407 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 440 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=286, Invalid=1046, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:17:44,408 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 1160 mSDsluCounter, 3176 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 3250 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:17:44,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1160 Valid, 3250 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:17:44,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4012 states. [2022-03-03 17:17:44,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4012 to 4007. [2022-03-03 17:17:44,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4007 states, 4006 states have (on average 3.3949076385421866) internal successors, (13600), 4006 states have internal predecessors, (13600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:17:44,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4007 states to 4007 states and 13600 transitions. [2022-03-03 17:17:44,511 INFO L78 Accepts]: Start accepts. Automaton has 4007 states and 13600 transitions. Word has length 227 [2022-03-03 17:17:44,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:17:44,511 INFO L470 AbstractCegarLoop]: Abstraction has 4007 states and 13600 transitions. [2022-03-03 17:17:44,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 15.2) internal successors, (380), 25 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:17:44,512 INFO L276 IsEmpty]: Start isEmpty. Operand 4007 states and 13600 transitions. [2022-03-03 17:17:44,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-03-03 17:17:44,521 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:17:44,521 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:17:44,547 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-03 17:17:44,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:17:44,745 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:17:44,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:17:44,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1211493865, now seen corresponding path program 2 times [2022-03-03 17:17:44,746 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:17:44,746 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638958514] [2022-03-03 17:17:44,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:17:44,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:17:44,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:17:44,980 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-03 17:17:44,980 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:17:44,980 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638958514] [2022-03-03 17:17:44,980 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638958514] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:17:44,981 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:17:44,981 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-03 17:17:44,981 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479167636] [2022-03-03 17:17:44,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:17:44,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-03 17:17:44,981 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:17:44,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-03 17:17:44,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-03-03 17:17:44,982 INFO L87 Difference]: Start difference. First operand 4007 states and 13600 transitions. Second operand has 12 states, 12 states have (on average 18.916666666666668) internal successors, (227), 12 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) [2022-03-03 17:17:45,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:17:45,300 INFO L93 Difference]: Finished difference Result 5700 states and 19646 transitions. [2022-03-03 17:17:45,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 17:17:45,300 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 18.916666666666668) internal successors, (227), 12 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) Word has length 234 [2022-03-03 17:17:45,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:17:45,320 INFO L225 Difference]: With dead ends: 5700 [2022-03-03 17:17:45,320 INFO L226 Difference]: Without dead ends: 5700 [2022-03-03 17:17:45,320 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=143, Invalid=507, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:17:45,321 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 759 mSDsluCounter, 1558 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 1725 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:17:45,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [759 Valid, 1725 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:17:45,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2022-03-03 17:17:45,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 4896. [2022-03-03 17:17:45,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4896 states, 4895 states have (on average 3.417364657814096) internal successors, (16728), 4895 states have internal predecessors, (16728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:17:45,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4896 states to 4896 states and 16728 transitions. [2022-03-03 17:17:45,444 INFO L78 Accepts]: Start accepts. Automaton has 4896 states and 16728 transitions. Word has length 234 [2022-03-03 17:17:45,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:17:45,445 INFO L470 AbstractCegarLoop]: Abstraction has 4896 states and 16728 transitions. [2022-03-03 17:17:45,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 18.916666666666668) internal successors, (227), 12 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) [2022-03-03 17:17:45,445 INFO L276 IsEmpty]: Start isEmpty. Operand 4896 states and 16728 transitions. [2022-03-03 17:17:45,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-03-03 17:17:45,455 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:17:45,456 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:17:45,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-03 17:17:45,456 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:17:45,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:17:45,456 INFO L85 PathProgramCache]: Analyzing trace with hash 566452589, now seen corresponding path program 3 times [2022-03-03 17:17:45,456 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:17:45,457 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913109974] [2022-03-03 17:17:45,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:17:45,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:17:45,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:17:45,857 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-03 17:17:45,857 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:17:45,857 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913109974] [2022-03-03 17:17:45,857 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913109974] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:17:45,858 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:17:45,858 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-03 17:17:45,858 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749526595] [2022-03-03 17:17:45,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:17:45,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-03 17:17:45,858 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:17:45,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-03 17:17:45,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2022-03-03 17:17:45,859 INFO L87 Difference]: Start difference. First operand 4896 states and 16728 transitions. Second operand has 17 states, 17 states have (on average 13.352941176470589) internal successors, (227), 17 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) [2022-03-03 17:17:46,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:17:46,356 INFO L93 Difference]: Finished difference Result 6494 states and 22544 transitions. [2022-03-03 17:17:46,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 17:17:46,356 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 13.352941176470589) internal successors, (227), 17 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) Word has length 234 [2022-03-03 17:17:46,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:17:46,379 INFO L225 Difference]: With dead ends: 6494 [2022-03-03 17:17:46,379 INFO L226 Difference]: Without dead ends: 6494 [2022-03-03 17:17:46,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=216, Invalid=714, Unknown=0, NotChecked=0, Total=930 [2022-03-03 17:17:46,381 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 1229 mSDsluCounter, 1493 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1229 SdHoareTripleChecker+Valid, 1665 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:17:46,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1229 Valid, 1665 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:17:46,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6494 states. [2022-03-03 17:17:46,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6494 to 4811. [2022-03-03 17:17:46,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4811 states, 4810 states have (on average 3.434095634095634) internal successors, (16518), 4810 states have internal predecessors, (16518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:17:46,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4811 states to 4811 states and 16518 transitions. [2022-03-03 17:17:46,488 INFO L78 Accepts]: Start accepts. Automaton has 4811 states and 16518 transitions. Word has length 234 [2022-03-03 17:17:46,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:17:46,488 INFO L470 AbstractCegarLoop]: Abstraction has 4811 states and 16518 transitions. [2022-03-03 17:17:46,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 13.352941176470589) internal successors, (227), 17 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) [2022-03-03 17:17:46,488 INFO L276 IsEmpty]: Start isEmpty. Operand 4811 states and 16518 transitions. [2022-03-03 17:17:46,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-03-03 17:17:46,500 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:17:46,500 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:17:46,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-03 17:17:46,500 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:17:46,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:17:46,500 INFO L85 PathProgramCache]: Analyzing trace with hash 298524689, now seen corresponding path program 1 times [2022-03-03 17:17:46,501 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:17:46,501 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645173137] [2022-03-03 17:17:46,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:17:46,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:17:46,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:17:46,570 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-03 17:17:46,571 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:17:46,571 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645173137] [2022-03-03 17:17:46,571 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645173137] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:17:46,571 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:17:46,571 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-03 17:17:46,571 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578441777] [2022-03-03 17:17:46,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:17:46,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-03 17:17:46,571 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:17:46,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-03 17:17:46,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-03 17:17:46,572 INFO L87 Difference]: Start difference. First operand 4811 states and 16518 transitions. Second operand has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:17:46,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:17:46,759 INFO L93 Difference]: Finished difference Result 12001 states and 42868 transitions. [2022-03-03 17:17:46,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-03 17:17:46,760 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 239 [2022-03-03 17:17:46,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:17:46,794 INFO L225 Difference]: With dead ends: 12001 [2022-03-03 17:17:46,795 INFO L226 Difference]: Without dead ends: 11761 [2022-03-03 17:17:46,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-03 17:17:46,795 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 119 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 17:17:46,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 602 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 17:17:46,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11761 states. [2022-03-03 17:17:47,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11761 to 9439. [2022-03-03 17:17:47,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9439 states, 9438 states have (on average 3.639966094511549) internal successors, (34354), 9438 states have internal predecessors, (34354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:17:47,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9439 states to 9439 states and 34354 transitions. [2022-03-03 17:17:47,055 INFO L78 Accepts]: Start accepts. Automaton has 9439 states and 34354 transitions. Word has length 239 [2022-03-03 17:17:47,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:17:47,056 INFO L470 AbstractCegarLoop]: Abstraction has 9439 states and 34354 transitions. [2022-03-03 17:17:47,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:17:47,056 INFO L276 IsEmpty]: Start isEmpty. Operand 9439 states and 34354 transitions. [2022-03-03 17:17:47,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-03-03 17:17:47,077 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:17:47,078 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:17:47,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-03 17:17:47,078 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:17:47,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:17:47,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1882916937, now seen corresponding path program 2 times [2022-03-03 17:17:47,079 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:17:47,079 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063039954] [2022-03-03 17:17:47,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:17:47,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:17:47,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:17:47,214 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-03 17:17:47,214 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:17:47,214 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063039954] [2022-03-03 17:17:47,214 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063039954] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 17:17:47,214 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796963899] [2022-03-03 17:17:47,214 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-03 17:17:47,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:17:47,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:17:47,232 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 17:17:47,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-03 17:17:47,396 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-03 17:17:47,396 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 17:17:47,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 20 conjunts are in the unsatisfiable core [2022-03-03 17:17:47,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 17:17:47,927 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-03 17:17:47,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 17:17:48,515 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-03 17:17:48,516 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796963899] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 17:17:48,516 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 17:17:48,516 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 25 [2022-03-03 17:17:48,516 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500259301] [2022-03-03 17:17:48,516 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 17:17:48,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-03 17:17:48,517 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:17:48,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-03 17:17:48,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=480, Unknown=0, NotChecked=0, Total=600 [2022-03-03 17:17:48,517 INFO L87 Difference]: Start difference. First operand 9439 states and 34354 transitions. Second operand has 25 states, 25 states have (on average 15.4) internal successors, (385), 25 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:17:48,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:17:48,920 INFO L93 Difference]: Finished difference Result 15362 states and 54263 transitions. [2022-03-03 17:17:48,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-03 17:17:48,920 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 15.4) internal successors, (385), 25 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 239 [2022-03-03 17:17:48,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:17:48,946 INFO L225 Difference]: With dead ends: 15362 [2022-03-03 17:17:48,946 INFO L226 Difference]: Without dead ends: 9451 [2022-03-03 17:17:48,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 464 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=286, Invalid=1046, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:17:48,947 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 744 mSDsluCounter, 2608 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 744 SdHoareTripleChecker+Valid, 2653 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:17:48,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [744 Valid, 2653 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:17:48,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9451 states. [2022-03-03 17:17:49,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9451 to 9446. [2022-03-03 17:17:49,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9446 states, 9445 states have (on average 3.638009528851244) internal successors, (34361), 9445 states have internal predecessors, (34361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:17:49,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9446 states to 9446 states and 34361 transitions. [2022-03-03 17:17:49,119 INFO L78 Accepts]: Start accepts. Automaton has 9446 states and 34361 transitions. Word has length 239 [2022-03-03 17:17:49,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:17:49,119 INFO L470 AbstractCegarLoop]: Abstraction has 9446 states and 34361 transitions. [2022-03-03 17:17:49,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 15.4) internal successors, (385), 25 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:17:49,120 INFO L276 IsEmpty]: Start isEmpty. Operand 9446 states and 34361 transitions. [2022-03-03 17:17:49,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-03 17:17:49,138 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:17:49,138 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:17:49,171 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-03 17:17:49,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-03-03 17:17:49,352 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:17:49,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:17:49,352 INFO L85 PathProgramCache]: Analyzing trace with hash -873924213, now seen corresponding path program 3 times [2022-03-03 17:17:49,352 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:17:49,352 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630949229] [2022-03-03 17:17:49,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:17:49,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:17:49,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:17:50,670 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-03 17:17:50,671 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:17:50,671 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630949229] [2022-03-03 17:17:50,671 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630949229] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 17:17:50,671 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379732664] [2022-03-03 17:17:50,671 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-03 17:17:50,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:17:50,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:17:50,685 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 17:17:50,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-03 17:17:50,864 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-03-03 17:17:50,865 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 17:17:50,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 82 conjunts are in the unsatisfiable core [2022-03-03 17:17:50,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 17:17:54,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:17:54,085 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-03 17:17:54,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:17:54,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:17:54,892 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-03-03 17:17:54,892 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 42 [2022-03-03 17:17:58,152 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 17:17:58,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 17:17:59,353 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:17:59,353 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 190 treesize of output 250 [2022-03-03 17:17:59,374 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:17:59,374 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 111 treesize of output 129 [2022-03-03 17:17:59,380 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 42 [2022-03-03 17:18:12,389 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 17:18:12,390 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379732664] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 17:18:12,390 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 17:18:12,390 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 40, 40] total 107 [2022-03-03 17:18:12,391 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917381009] [2022-03-03 17:18:12,391 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 17:18:12,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 107 states [2022-03-03 17:18:12,393 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:18:12,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2022-03-03 17:18:12,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=572, Invalid=10768, Unknown=2, NotChecked=0, Total=11342 [2022-03-03 17:18:12,398 INFO L87 Difference]: Start difference. First operand 9446 states and 34361 transitions. Second operand has 107 states, 107 states have (on average 5.794392523364486) internal successors, (620), 107 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:18:32,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:18:32,042 INFO L93 Difference]: Finished difference Result 22863 states and 74334 transitions. [2022-03-03 17:18:32,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 183 states. [2022-03-03 17:18:32,043 INFO L78 Accepts]: Start accepts. Automaton has has 107 states, 107 states have (on average 5.794392523364486) internal successors, (620), 107 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 246 [2022-03-03 17:18:32,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:18:32,115 INFO L225 Difference]: With dead ends: 22863 [2022-03-03 17:18:32,115 INFO L226 Difference]: Without dead ends: 22827 [2022-03-03 17:18:32,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 703 GetRequests, 425 SyntacticMatches, 10 SemanticMatches, 268 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22731 ImplicationChecksByTransitivity, 23.5s TimeCoverageRelationStatistics Valid=7049, Invalid=65579, Unknown=2, NotChecked=0, Total=72630 [2022-03-03 17:18:32,125 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 12333 mSDsluCounter, 13575 mSDsCounter, 0 mSdLazyCounter, 3713 mSolverCounterSat, 708 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12333 SdHoareTripleChecker+Valid, 13101 SdHoareTripleChecker+Invalid, 5832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 708 IncrementalHoareTripleChecker+Valid, 3713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1411 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:18:32,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12333 Valid, 13101 Invalid, 5832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [708 Valid, 3713 Invalid, 0 Unknown, 1411 Unchecked, 1.8s Time] [2022-03-03 17:18:32,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22827 states. [2022-03-03 17:18:32,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22827 to 13736. [2022-03-03 17:18:32,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13736 states, 13735 states have (on average 3.41914816163087) internal successors, (46962), 13735 states have internal predecessors, (46962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:18:32,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13736 states to 13736 states and 46962 transitions. [2022-03-03 17:18:32,509 INFO L78 Accepts]: Start accepts. Automaton has 13736 states and 46962 transitions. Word has length 246 [2022-03-03 17:18:32,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:18:32,509 INFO L470 AbstractCegarLoop]: Abstraction has 13736 states and 46962 transitions. [2022-03-03 17:18:32,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 107 states, 107 states have (on average 5.794392523364486) internal successors, (620), 107 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:18:32,509 INFO L276 IsEmpty]: Start isEmpty. Operand 13736 states and 46962 transitions. [2022-03-03 17:18:32,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-03 17:18:32,539 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:18:32,539 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:18:32,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-03 17:18:32,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:18:32,758 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:18:32,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:18:32,758 INFO L85 PathProgramCache]: Analyzing trace with hash 754672949, now seen corresponding path program 4 times [2022-03-03 17:18:32,758 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:18:32,758 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451164448] [2022-03-03 17:18:32,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:18:32,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:18:32,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:18:33,849 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-03 17:18:33,849 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:18:33,849 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451164448] [2022-03-03 17:18:33,849 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451164448] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 17:18:33,849 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193704914] [2022-03-03 17:18:33,849 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-03 17:18:33,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:18:33,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:18:33,851 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 17:18:33,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-03 17:18:33,993 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-03 17:18:33,993 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 17:18:33,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 88 conjunts are in the unsatisfiable core [2022-03-03 17:18:34,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 17:18:36,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:18:36,544 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-03 17:18:37,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:18:37,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:18:37,093 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-03-03 17:18:37,093 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 44 [2022-03-03 17:18:40,358 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 17:18:40,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 17:18:41,483 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:18:41,483 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 185 treesize of output 245 [2022-03-03 17:18:41,506 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:18:41,506 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 106 treesize of output 124 [2022-03-03 17:18:41,513 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 42 [2022-03-03 17:18:55,232 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 17:18:55,232 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193704914] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 17:18:55,232 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 17:18:55,232 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 40, 40] total 104 [2022-03-03 17:18:55,232 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125763913] [2022-03-03 17:18:55,232 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 17:18:55,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 104 states [2022-03-03 17:18:55,233 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:18:55,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2022-03-03 17:18:55,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=557, Invalid=10152, Unknown=3, NotChecked=0, Total=10712 [2022-03-03 17:18:55,235 INFO L87 Difference]: Start difference. First operand 13736 states and 46962 transitions. Second operand has 104 states, 104 states have (on average 5.903846153846154) internal successors, (614), 104 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:19:22,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:19:22,831 INFO L93 Difference]: Finished difference Result 22697 states and 72515 transitions. [2022-03-03 17:19:22,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 205 states. [2022-03-03 17:19:22,832 INFO L78 Accepts]: Start accepts. Automaton has has 104 states, 104 states have (on average 5.903846153846154) internal successors, (614), 104 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 246 [2022-03-03 17:19:22,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:19:22,898 INFO L225 Difference]: With dead ends: 22697 [2022-03-03 17:19:22,898 INFO L226 Difference]: Without dead ends: 22265 [2022-03-03 17:19:22,912 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 738 GetRequests, 442 SyntacticMatches, 11 SemanticMatches, 285 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25842 ImplicationChecksByTransitivity, 30.9s TimeCoverageRelationStatistics Valid=7617, Invalid=74458, Unknown=7, NotChecked=0, Total=82082 [2022-03-03 17:19:22,915 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 11559 mSDsluCounter, 14998 mSDsCounter, 0 mSdLazyCounter, 3993 mSolverCounterSat, 705 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11559 SdHoareTripleChecker+Valid, 14578 SdHoareTripleChecker+Invalid, 6005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 705 IncrementalHoareTripleChecker+Valid, 3993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1307 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:19:22,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11559 Valid, 14578 Invalid, 6005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [705 Valid, 3993 Invalid, 0 Unknown, 1307 Unchecked, 2.1s Time] [2022-03-03 17:19:22,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22265 states. [2022-03-03 17:19:23,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22265 to 16383. [2022-03-03 17:19:23,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16383 states, 16382 states have (on average 3.3179099011109754) internal successors, (54354), 16382 states have internal predecessors, (54354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:19:23,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16383 states to 16383 states and 54354 transitions. [2022-03-03 17:19:23,263 INFO L78 Accepts]: Start accepts. Automaton has 16383 states and 54354 transitions. Word has length 246 [2022-03-03 17:19:23,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:19:23,265 INFO L470 AbstractCegarLoop]: Abstraction has 16383 states and 54354 transitions. [2022-03-03 17:19:23,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 104 states, 104 states have (on average 5.903846153846154) internal successors, (614), 104 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:19:23,265 INFO L276 IsEmpty]: Start isEmpty. Operand 16383 states and 54354 transitions. [2022-03-03 17:19:23,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-03 17:19:23,295 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:19:23,296 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:19:23,313 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-03 17:19:23,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:19:23,514 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:19:23,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:19:23,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1739793713, now seen corresponding path program 5 times [2022-03-03 17:19:23,514 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:19:23,514 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077945337] [2022-03-03 17:19:23,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:19:23,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:19:23,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:19:24,768 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-03 17:19:24,768 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:19:24,768 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077945337] [2022-03-03 17:19:24,768 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077945337] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 17:19:24,768 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207580396] [2022-03-03 17:19:24,768 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-03 17:19:24,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:19:24,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:19:24,770 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 17:19:24,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-03 17:19:24,982 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-03-03 17:19:24,982 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 17:19:24,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 74 conjunts are in the unsatisfiable core [2022-03-03 17:19:24,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 17:19:27,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:19:27,326 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-03 17:19:28,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:19:28,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:19:28,064 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-03-03 17:19:28,064 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 44 [2022-03-03 17:19:28,470 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:19:28,471 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 33 [2022-03-03 17:19:28,590 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-03 17:19:28,591 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 17:19:29,622 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:19:29,623 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 190 treesize of output 250 [2022-03-03 17:19:29,639 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:19:29,640 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 111 treesize of output 129 [2022-03-03 17:19:29,646 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 42 [2022-03-03 17:19:37,952 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-03 17:19:37,952 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [207580396] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 17:19:37,957 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 17:19:37,957 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 31, 31] total 90 [2022-03-03 17:19:37,971 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032657993] [2022-03-03 17:19:37,971 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 17:19:37,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 90 states [2022-03-03 17:19:37,973 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:19:37,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2022-03-03 17:19:37,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=446, Invalid=7563, Unknown=1, NotChecked=0, Total=8010 [2022-03-03 17:19:37,974 INFO L87 Difference]: Start difference. First operand 16383 states and 54354 transitions. Second operand has 90 states, 90 states have (on average 6.7) internal successors, (603), 90 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:19:54,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:19:54,434 INFO L93 Difference]: Finished difference Result 65741 states and 234182 transitions. [2022-03-03 17:19:54,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2022-03-03 17:19:54,435 INFO L78 Accepts]: Start accepts. Automaton has has 90 states, 90 states have (on average 6.7) internal successors, (603), 90 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 246 [2022-03-03 17:19:54,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:19:54,729 INFO L225 Difference]: With dead ends: 65741 [2022-03-03 17:19:54,730 INFO L226 Difference]: Without dead ends: 64907 [2022-03-03 17:19:54,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 664 GetRequests, 443 SyntacticMatches, 12 SemanticMatches, 209 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12729 ImplicationChecksByTransitivity, 16.7s TimeCoverageRelationStatistics Valid=3830, Invalid=40471, Unknown=9, NotChecked=0, Total=44310 [2022-03-03 17:19:54,733 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 4222 mSDsluCounter, 16357 mSDsCounter, 0 mSdLazyCounter, 5171 mSolverCounterSat, 275 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4222 SdHoareTripleChecker+Valid, 15905 SdHoareTripleChecker+Invalid, 5972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 275 IncrementalHoareTripleChecker+Valid, 5171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 526 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:19:54,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4222 Valid, 15905 Invalid, 5972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [275 Valid, 5171 Invalid, 0 Unknown, 526 Unchecked, 2.2s Time] [2022-03-03 17:19:54,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64907 states. [2022-03-03 17:19:56,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64907 to 33100. [2022-03-03 17:19:56,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33100 states, 33099 states have (on average 3.628266715006496) internal successors, (120092), 33099 states have internal predecessors, (120092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:19:56,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33100 states to 33100 states and 120092 transitions. [2022-03-03 17:19:56,284 INFO L78 Accepts]: Start accepts. Automaton has 33100 states and 120092 transitions. Word has length 246 [2022-03-03 17:19:56,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:19:56,285 INFO L470 AbstractCegarLoop]: Abstraction has 33100 states and 120092 transitions. [2022-03-03 17:19:56,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 90 states, 90 states have (on average 6.7) internal successors, (603), 90 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:19:56,285 INFO L276 IsEmpty]: Start isEmpty. Operand 33100 states and 120092 transitions. [2022-03-03 17:19:56,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-03 17:19:56,370 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:19:56,371 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:19:56,389 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-03 17:19:56,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-03-03 17:19:56,593 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:19:56,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:19:56,593 INFO L85 PathProgramCache]: Analyzing trace with hash -808155429, now seen corresponding path program 6 times [2022-03-03 17:19:56,594 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:19:56,596 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643533832] [2022-03-03 17:19:56,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:19:56,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:19:56,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:19:57,010 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-03 17:19:57,011 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:19:57,011 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643533832] [2022-03-03 17:19:57,011 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643533832] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 17:19:57,011 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349228653] [2022-03-03 17:19:57,011 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-03 17:19:57,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:19:57,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:19:57,013 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 17:19:57,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-03 17:19:57,189 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-03-03 17:19:57,189 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 17:19:57,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 93 conjunts are in the unsatisfiable core [2022-03-03 17:19:57,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 17:19:59,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:19:59,184 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2022-03-03 17:19:59,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:19:59,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:19:59,690 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-03-03 17:19:59,690 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 45 [2022-03-03 17:20:00,992 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:20:00,993 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 34 [2022-03-03 17:20:01,024 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 17:20:01,025 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 17:20:01,824 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:20:01,824 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 190 treesize of output 250 [2022-03-03 17:20:01,844 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:20:01,844 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 138 treesize of output 156 [2022-03-03 17:20:01,852 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 46 [2022-03-03 17:20:09,201 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 17:20:09,202 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [349228653] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 17:20:09,202 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 17:20:09,202 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 40, 40] total 95 [2022-03-03 17:20:09,202 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694487763] [2022-03-03 17:20:09,202 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 17:20:09,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-03-03 17:20:09,204 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:20:09,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-03-03 17:20:09,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=581, Invalid=8345, Unknown=4, NotChecked=0, Total=8930 [2022-03-03 17:20:09,205 INFO L87 Difference]: Start difference. First operand 33100 states and 120092 transitions. Second operand has 95 states, 95 states have (on average 6.389473684210526) internal successors, (607), 95 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:19,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:20:19,526 INFO L93 Difference]: Finished difference Result 39993 states and 141121 transitions. [2022-03-03 17:20:19,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 165 states. [2022-03-03 17:20:19,527 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 95 states have (on average 6.389473684210526) internal successors, (607), 95 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 246 [2022-03-03 17:20:19,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:20:19,646 INFO L225 Difference]: With dead ends: 39993 [2022-03-03 17:20:19,646 INFO L226 Difference]: Without dead ends: 39993 [2022-03-03 17:20:19,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 674 GetRequests, 428 SyntacticMatches, 5 SemanticMatches, 241 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18628 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=6951, Invalid=51851, Unknown=4, NotChecked=0, Total=58806 [2022-03-03 17:20:19,654 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 11647 mSDsluCounter, 12271 mSDsCounter, 0 mSdLazyCounter, 3138 mSolverCounterSat, 813 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11647 SdHoareTripleChecker+Valid, 12006 SdHoareTripleChecker+Invalid, 5103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 813 IncrementalHoareTripleChecker+Valid, 3138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1152 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:20:19,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11647 Valid, 12006 Invalid, 5103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [813 Valid, 3138 Invalid, 0 Unknown, 1152 Unchecked, 1.3s Time] [2022-03-03 17:20:19,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39993 states. [2022-03-03 17:20:20,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39993 to 32993. [2022-03-03 17:20:20,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32993 states, 32992 states have (on average 3.653158341416101) internal successors, (120525), 32992 states have internal predecessors, (120525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:20,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32993 states to 32993 states and 120525 transitions. [2022-03-03 17:20:20,594 INFO L78 Accepts]: Start accepts. Automaton has 32993 states and 120525 transitions. Word has length 246 [2022-03-03 17:20:20,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:20:20,595 INFO L470 AbstractCegarLoop]: Abstraction has 32993 states and 120525 transitions. [2022-03-03 17:20:20,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 95 states have (on average 6.389473684210526) internal successors, (607), 95 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:20,595 INFO L276 IsEmpty]: Start isEmpty. Operand 32993 states and 120525 transitions. [2022-03-03 17:20:20,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-03 17:20:20,664 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:20:20,664 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:20:20,682 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-03 17:20:20,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-03-03 17:20:20,881 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:20:20,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:20:20,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1068162757, now seen corresponding path program 7 times [2022-03-03 17:20:20,883 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:20:20,883 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333552373] [2022-03-03 17:20:20,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:20:20,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:20:20,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:20:21,811 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 14 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-03 17:20:21,811 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:20:21,811 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333552373] [2022-03-03 17:20:21,811 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333552373] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 17:20:21,811 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [934548469] [2022-03-03 17:20:21,812 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-03 17:20:21,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:20:21,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:20:21,813 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 17:20:21,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-03 17:20:21,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:20:22,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 100 conjunts are in the unsatisfiable core [2022-03-03 17:20:22,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 17:20:25,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:20:25,800 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-03 17:20:26,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:20:26,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:20:26,383 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-03-03 17:20:26,384 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 42 [2022-03-03 17:20:27,213 INFO L353 Elim1Store]: treesize reduction 19, result has 67.8 percent of original size [2022-03-03 17:20:27,213 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 54 [2022-03-03 17:20:27,265 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 23 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 17:20:27,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 17:20:28,398 INFO L353 Elim1Store]: treesize reduction 40, result has 77.7 percent of original size [2022-03-03 17:20:28,399 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 417 treesize of output 483 [2022-03-03 17:20:28,412 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-03 17:20:28,430 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:20:28,431 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 277 treesize of output 309 [2022-03-03 17:20:28,454 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:20:28,455 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 244 treesize of output 212 [2022-03-03 17:21:05,705 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 23 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 17:21:05,706 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [934548469] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 17:21:05,706 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 17:21:05,706 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 44, 43] total 112 [2022-03-03 17:21:05,706 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49153195] [2022-03-03 17:21:05,706 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 17:21:05,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 112 states [2022-03-03 17:21:05,707 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:21:05,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2022-03-03 17:21:05,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=715, Invalid=11716, Unknown=1, NotChecked=0, Total=12432 [2022-03-03 17:21:05,708 INFO L87 Difference]: Start difference. First operand 32993 states and 120525 transitions. Second operand has 112 states, 112 states have (on average 5.482142857142857) internal successors, (614), 112 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:21:34,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:21:34,482 INFO L93 Difference]: Finished difference Result 45595 states and 158412 transitions. [2022-03-03 17:21:34,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 240 states. [2022-03-03 17:21:34,483 INFO L78 Accepts]: Start accepts. Automaton has has 112 states, 112 states have (on average 5.482142857142857) internal successors, (614), 112 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 246 [2022-03-03 17:21:34,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:21:34,621 INFO L225 Difference]: With dead ends: 45595 [2022-03-03 17:21:34,621 INFO L226 Difference]: Without dead ends: 45595 [2022-03-03 17:21:34,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 775 GetRequests, 430 SyntacticMatches, 14 SemanticMatches, 331 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37103 ImplicationChecksByTransitivity, 30.4s TimeCoverageRelationStatistics Valid=10950, Invalid=99596, Unknown=10, NotChecked=0, Total=110556 [2022-03-03 17:21:34,627 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 13855 mSDsluCounter, 18798 mSDsCounter, 0 mSdLazyCounter, 5374 mSolverCounterSat, 958 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13855 SdHoareTripleChecker+Valid, 18111 SdHoareTripleChecker+Invalid, 7946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 958 IncrementalHoareTripleChecker+Valid, 5374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1614 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:21:34,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13855 Valid, 18111 Invalid, 7946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [958 Valid, 5374 Invalid, 0 Unknown, 1614 Unchecked, 2.4s Time] [2022-03-03 17:21:34,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45595 states. [2022-03-03 17:21:35,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45595 to 35391. [2022-03-03 17:21:35,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35391 states, 35390 states have (on average 3.6126871997739474) internal successors, (127853), 35390 states have internal predecessors, (127853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:21:35,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35391 states to 35391 states and 127853 transitions. [2022-03-03 17:21:35,441 INFO L78 Accepts]: Start accepts. Automaton has 35391 states and 127853 transitions. Word has length 246 [2022-03-03 17:21:35,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:21:35,441 INFO L470 AbstractCegarLoop]: Abstraction has 35391 states and 127853 transitions. [2022-03-03 17:21:35,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 112 states, 112 states have (on average 5.482142857142857) internal successors, (614), 112 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:21:35,442 INFO L276 IsEmpty]: Start isEmpty. Operand 35391 states and 127853 transitions. [2022-03-03 17:21:35,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-03 17:21:35,516 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:21:35,516 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:21:35,535 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-03-03 17:21:35,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:21:35,733 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:21:35,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:21:35,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1799534223, now seen corresponding path program 8 times [2022-03-03 17:21:35,743 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:21:35,743 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435327891] [2022-03-03 17:21:35,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:21:35,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:21:35,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:21:37,601 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 17:21:37,602 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:21:37,602 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435327891] [2022-03-03 17:21:37,602 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435327891] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 17:21:37,602 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666953407] [2022-03-03 17:21:37,602 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-03 17:21:37,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:21:37,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:21:37,603 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 17:21:37,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-03 17:21:37,775 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-03 17:21:37,775 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 17:21:37,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 98 conjunts are in the unsatisfiable core [2022-03-03 17:21:37,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 17:21:41,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:21:41,211 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-03 17:21:41,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:21:41,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:21:41,759 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-03-03 17:21:41,759 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 42 [2022-03-03 17:21:42,711 INFO L353 Elim1Store]: treesize reduction 19, result has 67.8 percent of original size [2022-03-03 17:21:42,712 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 54 [2022-03-03 17:21:42,748 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 17:21:42,748 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 17:21:44,145 INFO L353 Elim1Store]: treesize reduction 40, result has 77.7 percent of original size [2022-03-03 17:21:44,146 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 335 treesize of output 409 [2022-03-03 17:21:44,163 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-03 17:21:44,189 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:21:44,189 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 267 treesize of output 305 [2022-03-03 17:21:44,213 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:21:44,214 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 176 treesize of output 156 [2022-03-03 17:22:33,968 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 17:22:33,968 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666953407] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 17:22:33,968 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 17:22:33,969 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 41, 41] total 115 [2022-03-03 17:22:33,969 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112504954] [2022-03-03 17:22:33,969 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 17:22:33,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 115 states [2022-03-03 17:22:33,969 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:22:33,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 115 interpolants. [2022-03-03 17:22:33,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=651, Invalid=12457, Unknown=2, NotChecked=0, Total=13110 [2022-03-03 17:22:33,971 INFO L87 Difference]: Start difference. First operand 35391 states and 127853 transitions. Second operand has 115 states, 115 states have (on average 5.260869565217392) internal successors, (605), 115 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:23:00,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:23:00,680 INFO L93 Difference]: Finished difference Result 66375 states and 238279 transitions. [2022-03-03 17:23:00,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 198 states. [2022-03-03 17:23:00,680 INFO L78 Accepts]: Start accepts. Automaton has has 115 states, 115 states have (on average 5.260869565217392) internal successors, (605), 115 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 246 [2022-03-03 17:23:00,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:23:00,889 INFO L225 Difference]: With dead ends: 66375 [2022-03-03 17:23:00,889 INFO L226 Difference]: Without dead ends: 66375 [2022-03-03 17:23:00,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 736 GetRequests, 433 SyntacticMatches, 11 SemanticMatches, 292 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26470 ImplicationChecksByTransitivity, 29.1s TimeCoverageRelationStatistics Valid=7568, Invalid=78559, Unknown=15, NotChecked=0, Total=86142 [2022-03-03 17:23:00,892 INFO L933 BasicCegarLoop]: 295 mSDtfsCounter, 10731 mSDsluCounter, 18257 mSDsCounter, 0 mSdLazyCounter, 4893 mSolverCounterSat, 734 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10731 SdHoareTripleChecker+Valid, 17721 SdHoareTripleChecker+Invalid, 7243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 734 IncrementalHoareTripleChecker+Valid, 4893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1616 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:23:00,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10731 Valid, 17721 Invalid, 7243 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [734 Valid, 4893 Invalid, 0 Unknown, 1616 Unchecked, 2.2s Time] [2022-03-03 17:23:00,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66375 states. [2022-03-03 17:23:01,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66375 to 39063. [2022-03-03 17:23:01,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39063 states, 39062 states have (on average 3.620372740771082) internal successors, (141419), 39062 states have internal predecessors, (141419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:23:02,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39063 states to 39063 states and 141419 transitions. [2022-03-03 17:23:02,057 INFO L78 Accepts]: Start accepts. Automaton has 39063 states and 141419 transitions. Word has length 246 [2022-03-03 17:23:02,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:23:02,058 INFO L470 AbstractCegarLoop]: Abstraction has 39063 states and 141419 transitions. [2022-03-03 17:23:02,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 115 states, 115 states have (on average 5.260869565217392) internal successors, (605), 115 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:23:02,058 INFO L276 IsEmpty]: Start isEmpty. Operand 39063 states and 141419 transitions. [2022-03-03 17:23:02,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-03 17:23:02,136 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:23:02,136 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:23:02,153 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-03 17:23:02,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-03-03 17:23:02,352 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:23:02,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:23:02,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1700431881, now seen corresponding path program 9 times [2022-03-03 17:23:02,352 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:23:02,353 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265456290] [2022-03-03 17:23:02,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:23:02,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:23:02,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:23:03,312 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-03 17:23:03,312 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:23:03,312 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265456290] [2022-03-03 17:23:03,313 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265456290] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 17:23:03,313 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188358274] [2022-03-03 17:23:03,313 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-03 17:23:03,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:23:03,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:23:03,316 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 17:23:03,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-03 17:23:03,524 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-03-03 17:23:03,524 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 17:23:03,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 96 conjunts are in the unsatisfiable core [2022-03-03 17:23:03,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 17:23:07,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:23:07,249 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-03 17:23:07,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:23:07,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:23:07,905 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-03-03 17:23:07,906 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 42 [2022-03-03 17:23:08,923 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:23:08,925 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 32 [2022-03-03 17:23:08,995 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 17:23:08,995 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 17:23:10,101 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:23:10,101 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 190 treesize of output 250 [2022-03-03 17:23:10,124 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:23:10,124 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 111 treesize of output 129 [2022-03-03 17:23:10,131 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 42 [2022-03-03 17:23:15,587 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 17:23:15,587 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188358274] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 17:23:15,588 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 17:23:15,588 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 40, 40] total 105 [2022-03-03 17:23:15,588 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512120343] [2022-03-03 17:23:15,588 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 17:23:15,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 105 states [2022-03-03 17:23:15,588 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:23:15,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2022-03-03 17:23:15,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=639, Invalid=10280, Unknown=1, NotChecked=0, Total=10920 [2022-03-03 17:23:15,590 INFO L87 Difference]: Start difference. First operand 39063 states and 141419 transitions. Second operand has 105 states, 105 states have (on average 5.9523809523809526) internal successors, (625), 105 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:23:33,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:23:33,882 INFO L93 Difference]: Finished difference Result 58145 states and 204126 transitions. [2022-03-03 17:23:33,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 202 states. [2022-03-03 17:23:33,882 INFO L78 Accepts]: Start accepts. Automaton has has 105 states, 105 states have (on average 5.9523809523809526) internal successors, (625), 105 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 246 [2022-03-03 17:23:33,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:23:34,086 INFO L225 Difference]: With dead ends: 58145 [2022-03-03 17:23:34,086 INFO L226 Difference]: Without dead ends: 58145 [2022-03-03 17:23:34,089 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 725 GetRequests, 432 SyntacticMatches, 9 SemanticMatches, 284 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26914 ImplicationChecksByTransitivity, 20.1s TimeCoverageRelationStatistics Valid=8190, Invalid=73308, Unknown=12, NotChecked=0, Total=81510 [2022-03-03 17:23:34,089 INFO L933 BasicCegarLoop]: 280 mSDtfsCounter, 9721 mSDsluCounter, 14702 mSDsCounter, 0 mSdLazyCounter, 3766 mSolverCounterSat, 651 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9721 SdHoareTripleChecker+Valid, 14355 SdHoareTripleChecker+Invalid, 6269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 3766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1852 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-03 17:23:34,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9721 Valid, 14355 Invalid, 6269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [651 Valid, 3766 Invalid, 0 Unknown, 1852 Unchecked, 1.7s Time] [2022-03-03 17:23:34,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58145 states. [2022-03-03 17:23:35,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58145 to 41730. [2022-03-03 17:23:35,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41730 states, 41729 states have (on average 3.6189220925495458) internal successors, (151014), 41729 states have internal predecessors, (151014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:23:35,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41730 states to 41730 states and 151014 transitions. [2022-03-03 17:23:35,499 INFO L78 Accepts]: Start accepts. Automaton has 41730 states and 151014 transitions. Word has length 246 [2022-03-03 17:23:35,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:23:35,499 INFO L470 AbstractCegarLoop]: Abstraction has 41730 states and 151014 transitions. [2022-03-03 17:23:35,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 105 states, 105 states have (on average 5.9523809523809526) internal successors, (625), 105 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:23:35,499 INFO L276 IsEmpty]: Start isEmpty. Operand 41730 states and 151014 transitions. [2022-03-03 17:23:35,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-03 17:23:35,588 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:23:35,589 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:23:35,610 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-03 17:23:35,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-03-03 17:23:35,792 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:23:35,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:23:35,792 INFO L85 PathProgramCache]: Analyzing trace with hash -118756725, now seen corresponding path program 10 times [2022-03-03 17:23:35,792 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:23:35,792 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061039988] [2022-03-03 17:23:35,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:23:35,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:23:35,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:23:37,813 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 23 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 17:23:37,813 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:23:37,813 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061039988] [2022-03-03 17:23:37,813 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061039988] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 17:23:37,813 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547651837] [2022-03-03 17:23:37,813 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-03 17:23:37,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:23:37,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:23:37,814 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 17:23:37,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-03 17:23:37,988 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-03 17:23:37,988 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 17:23:37,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 101 conjunts are in the unsatisfiable core [2022-03-03 17:23:37,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 17:23:41,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:23:41,553 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2022-03-03 17:23:42,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:23:42,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:23:42,003 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-03-03 17:23:42,004 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 42 [2022-03-03 17:23:43,921 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:23:43,921 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 32 [2022-03-03 17:23:43,940 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 23 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 17:23:43,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 17:23:44,852 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:23:44,853 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 263 treesize of output 315 [2022-03-03 17:23:44,873 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:23:44,873 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 139 treesize of output 151 [2022-03-03 17:23:44,879 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 94 [2022-03-03 17:23:51,836 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 23 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 17:23:51,837 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547651837] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 17:23:51,837 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 17:23:51,837 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 44, 43] total 124 [2022-03-03 17:23:51,838 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451450774] [2022-03-03 17:23:51,838 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 17:23:51,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 124 states [2022-03-03 17:23:51,840 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:23:51,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 124 interpolants. [2022-03-03 17:23:51,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=748, Invalid=14502, Unknown=2, NotChecked=0, Total=15252 [2022-03-03 17:23:51,842 INFO L87 Difference]: Start difference. First operand 41730 states and 151014 transitions. Second operand has 124 states, 124 states have (on average 5.088709677419355) internal successors, (631), 124 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:24:24,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:24:24,462 INFO L93 Difference]: Finished difference Result 65989 states and 235965 transitions. [2022-03-03 17:24:24,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 224 states. [2022-03-03 17:24:24,463 INFO L78 Accepts]: Start accepts. Automaton has has 124 states, 124 states have (on average 5.088709677419355) internal successors, (631), 124 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 246 [2022-03-03 17:24:24,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:24:24,679 INFO L225 Difference]: With dead ends: 65989 [2022-03-03 17:24:24,680 INFO L226 Difference]: Without dead ends: 65989 [2022-03-03 17:24:24,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 771 GetRequests, 421 SyntacticMatches, 21 SemanticMatches, 329 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35088 ImplicationChecksByTransitivity, 35.7s TimeCoverageRelationStatistics Valid=10310, Invalid=98899, Unknown=21, NotChecked=0, Total=109230 [2022-03-03 17:24:24,685 INFO L933 BasicCegarLoop]: 376 mSDtfsCounter, 12220 mSDsluCounter, 25193 mSDsCounter, 0 mSdLazyCounter, 7017 mSolverCounterSat, 769 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12220 SdHoareTripleChecker+Valid, 23855 SdHoareTripleChecker+Invalid, 10758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 769 IncrementalHoareTripleChecker+Valid, 7017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2972 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:24:24,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12220 Valid, 23855 Invalid, 10758 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [769 Valid, 7017 Invalid, 0 Unknown, 2972 Unchecked, 3.1s Time] [2022-03-03 17:24:24,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65989 states. [2022-03-03 17:24:25,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65989 to 45007. [2022-03-03 17:24:25,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45007 states, 45006 states have (on average 3.62373905701462) internal successors, (163090), 45006 states have internal predecessors, (163090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:24:26,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45007 states to 45007 states and 163090 transitions. [2022-03-03 17:24:26,067 INFO L78 Accepts]: Start accepts. Automaton has 45007 states and 163090 transitions. Word has length 246 [2022-03-03 17:24:26,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:24:26,068 INFO L470 AbstractCegarLoop]: Abstraction has 45007 states and 163090 transitions. [2022-03-03 17:24:26,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 124 states, 124 states have (on average 5.088709677419355) internal successors, (631), 124 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:24:26,068 INFO L276 IsEmpty]: Start isEmpty. Operand 45007 states and 163090 transitions. [2022-03-03 17:24:26,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-03 17:24:26,189 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:24:26,189 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:24:26,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-03-03 17:24:26,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:24:26,400 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:24:26,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:24:26,401 INFO L85 PathProgramCache]: Analyzing trace with hash 2010628545, now seen corresponding path program 11 times [2022-03-03 17:24:26,401 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:24:26,401 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885213759] [2022-03-03 17:24:26,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:24:26,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:24:26,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:24:27,325 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-03 17:24:27,326 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:24:27,326 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885213759] [2022-03-03 17:24:27,326 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885213759] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 17:24:27,326 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970415301] [2022-03-03 17:24:27,326 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-03 17:24:27,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:24:27,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:24:27,327 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 17:24:27,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-03 17:24:27,507 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-03-03 17:24:27,508 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 17:24:27,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 71 conjunts are in the unsatisfiable core [2022-03-03 17:24:27,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 17:24:27,565 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-03 17:24:27,733 INFO L353 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-03-03 17:24:27,733 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-03-03 17:24:28,678 INFO L353 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-03-03 17:24:28,678 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 16 treesize of output 18 [2022-03-03 17:24:30,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:24:30,112 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-03 17:24:30,463 INFO L353 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-03-03 17:24:30,463 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 46 [2022-03-03 17:24:30,469 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2022-03-03 17:24:30,600 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-03-03 17:24:30,650 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-03 17:24:30,650 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 17:24:31,406 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:24:31,406 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 190 treesize of output 250 [2022-03-03 17:24:31,426 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:24:31,426 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 111 treesize of output 129 [2022-03-03 17:24:31,433 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 42 [2022-03-03 17:24:34,653 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2022-03-03 17:24:34,715 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-03 17:24:34,716 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970415301] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 17:24:34,716 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 17:24:34,716 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 22, 22] total 70 [2022-03-03 17:24:34,716 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806181891] [2022-03-03 17:24:34,716 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 17:24:34,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-03-03 17:24:34,716 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:24:34,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-03-03 17:24:34,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=4613, Unknown=1, NotChecked=0, Total=4830 [2022-03-03 17:24:34,717 INFO L87 Difference]: Start difference. First operand 45007 states and 163090 transitions. Second operand has 70 states, 70 states have (on average 8.414285714285715) internal successors, (589), 70 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:24:39,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:24:39,186 INFO L93 Difference]: Finished difference Result 76296 states and 277296 transitions. [2022-03-03 17:24:39,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-03 17:24:39,187 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 70 states have (on average 8.414285714285715) internal successors, (589), 70 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 246 [2022-03-03 17:24:39,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:24:39,447 INFO L225 Difference]: With dead ends: 76296 [2022-03-03 17:24:39,447 INFO L226 Difference]: Without dead ends: 76296 [2022-03-03 17:24:39,448 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 578 GetRequests, 460 SyntacticMatches, 4 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2594 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=749, Invalid=12590, Unknown=1, NotChecked=0, Total=13340 [2022-03-03 17:24:39,448 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 956 mSDsluCounter, 12209 mSDsCounter, 0 mSdLazyCounter, 2307 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 956 SdHoareTripleChecker+Valid, 11932 SdHoareTripleChecker+Invalid, 3339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 990 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-03 17:24:39,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [956 Valid, 11932 Invalid, 3339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2307 Invalid, 0 Unknown, 990 Unchecked, 1.0s Time] [2022-03-03 17:24:39,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76296 states. [2022-03-03 17:24:40,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76296 to 41717. [2022-03-03 17:24:40,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41717 states, 41716 states have (on average 3.6889203183430817) internal successors, (153887), 41716 states have internal predecessors, (153887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:24:41,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41717 states to 41717 states and 153887 transitions. [2022-03-03 17:24:41,267 INFO L78 Accepts]: Start accepts. Automaton has 41717 states and 153887 transitions. Word has length 246 [2022-03-03 17:24:41,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:24:41,267 INFO L470 AbstractCegarLoop]: Abstraction has 41717 states and 153887 transitions. [2022-03-03 17:24:41,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 8.414285714285715) internal successors, (589), 70 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:24:41,267 INFO L276 IsEmpty]: Start isEmpty. Operand 41717 states and 153887 transitions. [2022-03-03 17:24:41,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-03 17:24:41,359 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:24:41,359 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:24:41,377 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-03-03 17:24:41,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:24:41,576 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:24:41,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:24:41,576 INFO L85 PathProgramCache]: Analyzing trace with hash 2397729, now seen corresponding path program 12 times [2022-03-03 17:24:41,576 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:24:41,577 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974990260] [2022-03-03 17:24:41,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:24:41,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:24:41,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:24:42,603 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-03 17:24:42,604 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:24:42,604 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974990260] [2022-03-03 17:24:42,604 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974990260] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 17:24:42,604 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461716365] [2022-03-03 17:24:42,604 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-03 17:24:42,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:24:42,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:24:42,605 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 17:24:42,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-03-03 17:24:42,838 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-03-03 17:24:42,838 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 17:24:42,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 97 conjunts are in the unsatisfiable core [2022-03-03 17:24:42,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 17:24:45,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:24:45,236 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2022-03-03 17:24:45,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:24:45,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:24:45,763 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-03-03 17:24:45,763 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 45 [2022-03-03 17:24:47,087 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 5 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 17:24:47,088 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 17:24:48,302 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:24:48,302 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 185 treesize of output 245 [2022-03-03 17:24:48,325 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:24:48,326 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 106 treesize of output 124 [2022-03-03 17:24:48,333 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 42 [2022-03-03 17:24:55,325 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 5 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 17:24:55,325 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1461716365] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 17:24:55,325 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 17:24:55,325 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 38, 40] total 103 [2022-03-03 17:24:55,325 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703144679] [2022-03-03 17:24:55,325 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 17:24:55,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 103 states [2022-03-03 17:24:55,326 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:24:55,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2022-03-03 17:24:55,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=621, Invalid=9883, Unknown=2, NotChecked=0, Total=10506 [2022-03-03 17:24:55,327 INFO L87 Difference]: Start difference. First operand 41717 states and 153887 transitions. Second operand has 103 states, 103 states have (on average 5.844660194174757) internal successors, (602), 103 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:25:15,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:25:15,251 INFO L93 Difference]: Finished difference Result 48476 states and 174471 transitions. [2022-03-03 17:25:15,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 175 states. [2022-03-03 17:25:15,254 INFO L78 Accepts]: Start accepts. Automaton has has 103 states, 103 states have (on average 5.844660194174757) internal successors, (602), 103 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 246 [2022-03-03 17:25:15,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:25:15,403 INFO L225 Difference]: With dead ends: 48476 [2022-03-03 17:25:15,403 INFO L226 Difference]: Without dead ends: 48269 [2022-03-03 17:25:15,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 704 GetRequests, 438 SyntacticMatches, 9 SemanticMatches, 257 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19791 ImplicationChecksByTransitivity, 22.1s TimeCoverageRelationStatistics Valid=6832, Invalid=59969, Unknown=21, NotChecked=0, Total=66822 [2022-03-03 17:25:15,406 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 10629 mSDsluCounter, 15128 mSDsCounter, 0 mSdLazyCounter, 3860 mSolverCounterSat, 616 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10629 SdHoareTripleChecker+Valid, 14576 SdHoareTripleChecker+Invalid, 6481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 616 IncrementalHoareTripleChecker+Valid, 3860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2005 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:25:15,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10629 Valid, 14576 Invalid, 6481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [616 Valid, 3860 Invalid, 0 Unknown, 2005 Unchecked, 1.8s Time] [2022-03-03 17:25:15,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48269 states. [2022-03-03 17:25:16,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48269 to 44103. [2022-03-03 17:25:16,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44103 states, 44102 states have (on average 3.6567275860505193) internal successors, (161269), 44102 states have internal predecessors, (161269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:25:16,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44103 states to 44103 states and 161269 transitions. [2022-03-03 17:25:16,466 INFO L78 Accepts]: Start accepts. Automaton has 44103 states and 161269 transitions. Word has length 246 [2022-03-03 17:25:16,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:25:16,466 INFO L470 AbstractCegarLoop]: Abstraction has 44103 states and 161269 transitions. [2022-03-03 17:25:16,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 103 states, 103 states have (on average 5.844660194174757) internal successors, (602), 103 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:25:16,467 INFO L276 IsEmpty]: Start isEmpty. Operand 44103 states and 161269 transitions. [2022-03-03 17:25:16,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-03 17:25:16,566 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:25:16,566 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:25:16,590 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-03-03 17:25:16,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-03-03 17:25:16,772 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:25:16,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:25:16,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1391254413, now seen corresponding path program 13 times [2022-03-03 17:25:16,773 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:25:16,773 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540332871] [2022-03-03 17:25:16,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:25:16,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:25:16,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:25:18,001 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-03 17:25:18,001 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:25:18,001 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540332871] [2022-03-03 17:25:18,001 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540332871] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 17:25:18,001 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1790060109] [2022-03-03 17:25:18,001 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-03 17:25:18,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:25:18,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:25:18,002 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 17:25:18,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-03-03 17:25:18,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:25:18,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 86 conjunts are in the unsatisfiable core [2022-03-03 17:25:18,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 17:25:21,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:25:21,382 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-03 17:25:22,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:25:22,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:25:22,124 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-03-03 17:25:22,124 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 42 [2022-03-03 17:25:23,682 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 17:25:23,683 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 17:25:24,781 INFO L353 Elim1Store]: treesize reduction 40, result has 77.7 percent of original size [2022-03-03 17:25:24,784 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 417 treesize of output 483 [2022-03-03 17:25:24,797 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-03 17:25:24,815 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:25:24,816 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 277 treesize of output 309 [2022-03-03 17:25:24,832 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:25:24,832 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 244 treesize of output 212 [2022-03-03 17:25:53,470 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 17:25:53,471 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1790060109] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 17:25:53,471 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 17:25:53,472 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 40, 40] total 106 [2022-03-03 17:25:53,472 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446987433] [2022-03-03 17:25:53,472 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 17:25:53,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 106 states [2022-03-03 17:25:53,476 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:25:53,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2022-03-03 17:25:53,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=516, Invalid=10613, Unknown=1, NotChecked=0, Total=11130 [2022-03-03 17:25:53,477 INFO L87 Difference]: Start difference. First operand 44103 states and 161269 transitions. Second operand has 106 states, 106 states have (on average 5.69811320754717) internal successors, (604), 106 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:26:05,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:26:05,849 INFO L93 Difference]: Finished difference Result 49953 states and 180236 transitions. [2022-03-03 17:26:05,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-03-03 17:26:05,850 INFO L78 Accepts]: Start accepts. Automaton has has 106 states, 106 states have (on average 5.69811320754717) internal successors, (604), 106 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 246 [2022-03-03 17:26:05,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:26:06,032 INFO L225 Difference]: With dead ends: 49953 [2022-03-03 17:26:06,032 INFO L226 Difference]: Without dead ends: 49953 [2022-03-03 17:26:06,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 657 GetRequests, 436 SyntacticMatches, 10 SemanticMatches, 211 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12364 ImplicationChecksByTransitivity, 15.8s TimeCoverageRelationStatistics Valid=3836, Invalid=41319, Unknown=1, NotChecked=0, Total=45156 [2022-03-03 17:26:06,035 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 6734 mSDsluCounter, 14114 mSDsCounter, 0 mSdLazyCounter, 3182 mSolverCounterSat, 341 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6734 SdHoareTripleChecker+Valid, 13959 SdHoareTripleChecker+Invalid, 4283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 341 IncrementalHoareTripleChecker+Valid, 3182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 760 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:26:06,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6734 Valid, 13959 Invalid, 4283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [341 Valid, 3182 Invalid, 0 Unknown, 760 Unchecked, 1.3s Time] [2022-03-03 17:26:06,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49953 states. [2022-03-03 17:26:06,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49953 to 45323. [2022-03-03 17:26:06,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45323 states, 45322 states have (on average 3.6534133533383346) internal successors, (165580), 45322 states have internal predecessors, (165580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:26:07,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45323 states to 45323 states and 165580 transitions. [2022-03-03 17:26:07,133 INFO L78 Accepts]: Start accepts. Automaton has 45323 states and 165580 transitions. Word has length 246 [2022-03-03 17:26:07,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:26:07,133 INFO L470 AbstractCegarLoop]: Abstraction has 45323 states and 165580 transitions. [2022-03-03 17:26:07,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 106 states, 106 states have (on average 5.69811320754717) internal successors, (604), 106 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:26:07,133 INFO L276 IsEmpty]: Start isEmpty. Operand 45323 states and 165580 transitions. [2022-03-03 17:26:07,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-03 17:26:07,238 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:26:07,239 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:26:07,257 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-03-03 17:26:07,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-03-03 17:26:07,451 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:26:07,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:26:07,452 INFO L85 PathProgramCache]: Analyzing trace with hash 934036013, now seen corresponding path program 14 times [2022-03-03 17:26:07,452 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:26:07,452 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681424967] [2022-03-03 17:26:07,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:26:07,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:26:07,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:26:09,154 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-03 17:26:09,154 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:26:09,154 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681424967] [2022-03-03 17:26:09,154 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681424967] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 17:26:09,154 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527513799] [2022-03-03 17:26:09,154 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-03 17:26:09,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:26:09,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:26:09,156 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 17:26:09,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-03-03 17:26:09,360 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-03 17:26:09,360 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 17:26:09,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 93 conjunts are in the unsatisfiable core [2022-03-03 17:26:09,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 17:26:12,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:26:12,550 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2022-03-03 17:26:13,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:26:13,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:26:13,180 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-03-03 17:26:13,180 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 44 [2022-03-03 17:26:15,747 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:26:15,747 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 34 [2022-03-03 17:26:15,809 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 17:26:15,809 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 17:26:17,045 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:26:17,045 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 263 treesize of output 315 [2022-03-03 17:26:17,068 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:26:17,069 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 139 treesize of output 151 [2022-03-03 17:26:17,077 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 94 [2022-03-03 17:26:22,406 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 17:26:22,406 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [527513799] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 17:26:22,406 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 17:26:22,406 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 40, 40] total 104 [2022-03-03 17:26:22,406 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75154172] [2022-03-03 17:26:22,406 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 17:26:22,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 104 states [2022-03-03 17:26:22,407 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:26:22,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2022-03-03 17:26:22,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=584, Invalid=10125, Unknown=3, NotChecked=0, Total=10712 [2022-03-03 17:26:22,408 INFO L87 Difference]: Start difference. First operand 45323 states and 165580 transitions. Second operand has 104 states, 104 states have (on average 5.75) internal successors, (598), 104 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:26:40,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:26:40,802 INFO L93 Difference]: Finished difference Result 53417 states and 191547 transitions. [2022-03-03 17:26:40,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 164 states. [2022-03-03 17:26:40,803 INFO L78 Accepts]: Start accepts. Automaton has has 104 states, 104 states have (on average 5.75) internal successors, (598), 104 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 246 [2022-03-03 17:26:40,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:26:40,992 INFO L225 Difference]: With dead ends: 53417 [2022-03-03 17:26:40,992 INFO L226 Difference]: Without dead ends: 53417 [2022-03-03 17:26:40,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 690 GetRequests, 439 SyntacticMatches, 5 SemanticMatches, 246 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16788 ImplicationChecksByTransitivity, 22.4s TimeCoverageRelationStatistics Valid=6524, Invalid=54722, Unknown=10, NotChecked=0, Total=61256 [2022-03-03 17:26:40,999 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 11009 mSDsluCounter, 14467 mSDsCounter, 0 mSdLazyCounter, 3780 mSolverCounterSat, 697 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11009 SdHoareTripleChecker+Valid, 13968 SdHoareTripleChecker+Invalid, 6478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 697 IncrementalHoareTripleChecker+Valid, 3780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2001 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-03 17:26:40,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11009 Valid, 13968 Invalid, 6478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [697 Valid, 3780 Invalid, 0 Unknown, 2001 Unchecked, 1.7s Time] [2022-03-03 17:26:41,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53417 states. [2022-03-03 17:26:42,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53417 to 46061. [2022-03-03 17:26:42,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46061 states, 46060 states have (on average 3.6531480677377335) internal successors, (168264), 46060 states have internal predecessors, (168264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:26:42,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46061 states to 46061 states and 168264 transitions. [2022-03-03 17:26:42,598 INFO L78 Accepts]: Start accepts. Automaton has 46061 states and 168264 transitions. Word has length 246 [2022-03-03 17:26:42,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:26:42,598 INFO L470 AbstractCegarLoop]: Abstraction has 46061 states and 168264 transitions. [2022-03-03 17:26:42,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 104 states, 104 states have (on average 5.75) internal successors, (598), 104 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:26:42,598 INFO L276 IsEmpty]: Start isEmpty. Operand 46061 states and 168264 transitions. [2022-03-03 17:26:42,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-03 17:26:42,702 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:26:42,702 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:26:42,720 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-03-03 17:26:42,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:26:42,923 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:26:42,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:26:42,924 INFO L85 PathProgramCache]: Analyzing trace with hash 674028685, now seen corresponding path program 15 times [2022-03-03 17:26:42,924 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:26:42,924 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377872775] [2022-03-03 17:26:42,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:26:42,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:26:43,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:26:45,018 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 23 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 17:26:45,018 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:26:45,019 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377872775] [2022-03-03 17:26:45,019 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377872775] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 17:26:45,019 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1130977206] [2022-03-03 17:26:45,019 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-03 17:26:45,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:26:45,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:26:45,020 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 17:26:45,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-03-03 17:26:45,238 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-03-03 17:26:45,239 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 17:26:45,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 81 conjunts are in the unsatisfiable core [2022-03-03 17:26:45,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 17:26:47,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:26:47,856 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-03 17:26:48,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:26:48,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:26:48,226 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-03-03 17:26:48,226 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 42 [2022-03-03 17:26:49,624 INFO L353 Elim1Store]: treesize reduction 19, result has 67.8 percent of original size [2022-03-03 17:26:49,625 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 54 [2022-03-03 17:26:49,672 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-03 17:26:49,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 17:26:50,760 INFO L353 Elim1Store]: treesize reduction 28, result has 84.4 percent of original size [2022-03-03 17:26:50,760 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 262 treesize of output 356 [2022-03-03 17:26:50,796 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:26:50,796 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 175 treesize of output 235 [2022-03-03 17:26:50,811 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:26:50,812 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 112 treesize of output 104 [2022-03-03 17:27:33,010 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 14 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-03 17:27:33,011 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1130977206] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 17:27:33,011 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 17:27:33,011 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 34, 32] total 100 [2022-03-03 17:27:33,011 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020105133] [2022-03-03 17:27:33,011 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 17:27:33,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2022-03-03 17:27:33,012 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:27:33,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2022-03-03 17:27:33,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=460, Invalid=9435, Unknown=5, NotChecked=0, Total=9900 [2022-03-03 17:27:33,013 INFO L87 Difference]: Start difference. First operand 46061 states and 168264 transitions. Second operand has 100 states, 100 states have (on average 5.97) internal successors, (597), 100 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:27:49,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:27:49,496 INFO L93 Difference]: Finished difference Result 52085 states and 187647 transitions. [2022-03-03 17:27:49,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 164 states. [2022-03-03 17:27:49,497 INFO L78 Accepts]: Start accepts. Automaton has has 100 states, 100 states have (on average 5.97) internal successors, (597), 100 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 246 [2022-03-03 17:27:49,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:27:49,667 INFO L225 Difference]: With dead ends: 52085 [2022-03-03 17:27:49,667 INFO L226 Difference]: Without dead ends: 52085 [2022-03-03 17:27:49,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 693 GetRequests, 445 SyntacticMatches, 6 SemanticMatches, 242 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16178 ImplicationChecksByTransitivity, 19.3s TimeCoverageRelationStatistics Valid=5918, Invalid=53365, Unknown=9, NotChecked=0, Total=59292 [2022-03-03 17:27:49,670 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 6542 mSDsluCounter, 14764 mSDsCounter, 0 mSdLazyCounter, 3747 mSolverCounterSat, 466 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6542 SdHoareTripleChecker+Valid, 14489 SdHoareTripleChecker+Invalid, 5363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 466 IncrementalHoareTripleChecker+Valid, 3747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1150 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:27:49,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6542 Valid, 14489 Invalid, 5363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [466 Valid, 3747 Invalid, 0 Unknown, 1150 Unchecked, 1.8s Time] [2022-03-03 17:27:49,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52085 states. [2022-03-03 17:27:50,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52085 to 47032. [2022-03-03 17:27:50,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47032 states, 47031 states have (on average 3.648508430609598) internal successors, (171593), 47031 states have internal predecessors, (171593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:27:50,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47032 states to 47032 states and 171593 transitions. [2022-03-03 17:27:50,949 INFO L78 Accepts]: Start accepts. Automaton has 47032 states and 171593 transitions. Word has length 246 [2022-03-03 17:27:50,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:27:50,949 INFO L470 AbstractCegarLoop]: Abstraction has 47032 states and 171593 transitions. [2022-03-03 17:27:50,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 100 states, 100 states have (on average 5.97) internal successors, (597), 100 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:27:50,950 INFO L276 IsEmpty]: Start isEmpty. Operand 47032 states and 171593 transitions. [2022-03-03 17:27:51,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-03 17:27:51,054 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:27:51,054 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:27:51,071 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-03-03 17:27:51,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:27:51,272 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:27:51,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:27:51,273 INFO L85 PathProgramCache]: Analyzing trace with hash -57342781, now seen corresponding path program 16 times [2022-03-03 17:27:51,273 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:27:51,273 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807791743] [2022-03-03 17:27:51,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:27:51,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:27:51,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:27:53,020 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 17:27:53,020 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:27:53,020 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807791743] [2022-03-03 17:27:53,020 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807791743] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 17:27:53,020 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018354063] [2022-03-03 17:27:53,020 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-03 17:27:53,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:27:53,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:27:53,021 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 17:27:53,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-03-03 17:27:53,217 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-03 17:27:53,217 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 17:27:53,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 94 conjunts are in the unsatisfiable core [2022-03-03 17:27:53,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 17:27:56,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:27:56,084 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-03 17:27:56,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:27:56,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:27:56,682 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-03-03 17:27:56,682 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 42 [2022-03-03 17:27:58,082 INFO L353 Elim1Store]: treesize reduction 33, result has 42.1 percent of original size [2022-03-03 17:27:58,082 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 35 [2022-03-03 17:27:58,106 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 17:27:58,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 17:27:58,993 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:27:58,993 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 263 treesize of output 315 [2022-03-03 17:27:59,008 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:27:59,008 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 203 treesize of output 215 [2022-03-03 17:27:59,014 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 94 [2022-03-03 17:28:06,567 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 23 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 17:28:06,567 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018354063] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 17:28:06,568 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 17:28:06,568 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 44, 43] total 120 [2022-03-03 17:28:06,568 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225605551] [2022-03-03 17:28:06,568 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 17:28:06,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 120 states [2022-03-03 17:28:06,568 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:28:06,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 120 interpolants. [2022-03-03 17:28:06,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=670, Invalid=13608, Unknown=2, NotChecked=0, Total=14280 [2022-03-03 17:28:06,570 INFO L87 Difference]: Start difference. First operand 47032 states and 171593 transitions. Second operand has 120 states, 120 states have (on average 5.133333333333334) internal successors, (616), 120 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:28:41,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:28:41,549 INFO L93 Difference]: Finished difference Result 57455 states and 204175 transitions. [2022-03-03 17:28:41,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 222 states. [2022-03-03 17:28:41,549 INFO L78 Accepts]: Start accepts. Automaton has has 120 states, 120 states have (on average 5.133333333333334) internal successors, (616), 120 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 246 [2022-03-03 17:28:41,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:28:41,724 INFO L225 Difference]: With dead ends: 57455 [2022-03-03 17:28:41,725 INFO L226 Difference]: Without dead ends: 57455 [2022-03-03 17:28:41,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 755 GetRequests, 423 SyntacticMatches, 10 SemanticMatches, 322 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32002 ImplicationChecksByTransitivity, 36.7s TimeCoverageRelationStatistics Valid=9880, Invalid=94768, Unknown=4, NotChecked=0, Total=104652 [2022-03-03 17:28:41,730 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 8618 mSDsluCounter, 24288 mSDsCounter, 0 mSdLazyCounter, 6993 mSolverCounterSat, 530 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8618 SdHoareTripleChecker+Valid, 23361 SdHoareTripleChecker+Invalid, 9439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 530 IncrementalHoareTripleChecker+Valid, 6993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1916 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-03 17:28:41,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8618 Valid, 23361 Invalid, 9439 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [530 Valid, 6993 Invalid, 0 Unknown, 1916 Unchecked, 3.0s Time] [2022-03-03 17:28:41,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57455 states. [2022-03-03 17:28:42,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57455 to 49444. [2022-03-03 17:28:42,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49444 states, 49443 states have (on average 3.62490140161398) internal successors, (179226), 49443 states have internal predecessors, (179226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:28:42,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49444 states to 49444 states and 179226 transitions. [2022-03-03 17:28:42,962 INFO L78 Accepts]: Start accepts. Automaton has 49444 states and 179226 transitions. Word has length 246 [2022-03-03 17:28:42,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:28:42,962 INFO L470 AbstractCegarLoop]: Abstraction has 49444 states and 179226 transitions. [2022-03-03 17:28:42,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 120 states, 120 states have (on average 5.133333333333334) internal successors, (616), 120 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:28:42,963 INFO L276 IsEmpty]: Start isEmpty. Operand 49444 states and 179226 transitions. [2022-03-03 17:28:43,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-03 17:28:43,078 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:28:43,078 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:28:43,094 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-03-03 17:28:43,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-03-03 17:28:43,295 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:28:43,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:28:43,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1651554605, now seen corresponding path program 17 times [2022-03-03 17:28:43,296 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:28:43,296 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341344449] [2022-03-03 17:28:43,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:28:43,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:28:43,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:28:43,713 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-03 17:28:43,713 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:28:43,713 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341344449] [2022-03-03 17:28:43,713 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341344449] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 17:28:43,713 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961276029] [2022-03-03 17:28:43,713 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-03 17:28:43,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:28:43,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:28:43,724 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 17:28:43,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-03-03 17:28:43,961 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-03-03 17:28:43,961 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 17:28:43,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 87 conjunts are in the unsatisfiable core [2022-03-03 17:28:43,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 17:28:46,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:28:46,643 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-03 17:28:47,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:28:47,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:28:47,205 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-03-03 17:28:47,205 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 45 [2022-03-03 17:28:48,788 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 17:28:48,788 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 17:28:50,151 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:28:50,151 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 268 treesize of output 320 [2022-03-03 17:28:50,174 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:28:50,174 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 208 treesize of output 220 [2022-03-03 17:28:50,182 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 94 [2022-03-03 17:29:08,453 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 17:29:08,453 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961276029] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 17:29:08,453 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 17:29:08,454 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 39, 39] total 95 [2022-03-03 17:29:08,454 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682828270] [2022-03-03 17:29:08,454 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 17:29:08,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-03-03 17:29:08,454 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:29:08,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-03-03 17:29:08,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=510, Invalid=8419, Unknown=1, NotChecked=0, Total=8930 [2022-03-03 17:29:08,455 INFO L87 Difference]: Start difference. First operand 49444 states and 179226 transitions. Second operand has 95 states, 95 states have (on average 6.557894736842106) internal successors, (623), 95 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:29:30,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:29:30,172 INFO L93 Difference]: Finished difference Result 61338 states and 219070 transitions. [2022-03-03 17:29:30,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 205 states. [2022-03-03 17:29:30,172 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 95 states have (on average 6.557894736842106) internal successors, (623), 95 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 246 [2022-03-03 17:29:30,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:29:30,480 INFO L225 Difference]: With dead ends: 61338 [2022-03-03 17:29:30,480 INFO L226 Difference]: Without dead ends: 61329 [2022-03-03 17:29:30,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 724 GetRequests, 434 SyntacticMatches, 11 SemanticMatches, 279 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 26581 ImplicationChecksByTransitivity, 23.0s TimeCoverageRelationStatistics Valid=7642, Invalid=71037, Unknown=1, NotChecked=0, Total=78680 [2022-03-03 17:29:30,483 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 13271 mSDsluCounter, 13269 mSDsCounter, 0 mSdLazyCounter, 2924 mSolverCounterSat, 879 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13271 SdHoareTripleChecker+Valid, 12813 SdHoareTripleChecker+Invalid, 5806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 879 IncrementalHoareTripleChecker+Valid, 2924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2003 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:29:30,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13271 Valid, 12813 Invalid, 5806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [879 Valid, 2924 Invalid, 0 Unknown, 2003 Unchecked, 1.5s Time] [2022-03-03 17:29:30,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61329 states. [2022-03-03 17:29:31,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61329 to 54239. [2022-03-03 17:29:31,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54239 states, 54238 states have (on average 3.6206902909399314) internal successors, (196379), 54238 states have internal predecessors, (196379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:29:31,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54239 states to 54239 states and 196379 transitions. [2022-03-03 17:29:31,757 INFO L78 Accepts]: Start accepts. Automaton has 54239 states and 196379 transitions. Word has length 246 [2022-03-03 17:29:31,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:29:31,757 INFO L470 AbstractCegarLoop]: Abstraction has 54239 states and 196379 transitions. [2022-03-03 17:29:31,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 95 states have (on average 6.557894736842106) internal successors, (623), 95 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:29:31,758 INFO L276 IsEmpty]: Start isEmpty. Operand 54239 states and 196379 transitions. [2022-03-03 17:29:31,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-03 17:29:31,875 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:29:31,875 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:29:31,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-03-03 17:29:32,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-03-03 17:29:32,093 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:29:32,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:29:32,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1441550707, now seen corresponding path program 18 times [2022-03-03 17:29:32,094 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:29:32,094 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939355346] [2022-03-03 17:29:32,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:29:32,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:29:32,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:29:33,246 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-03 17:29:33,246 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:29:33,246 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939355346] [2022-03-03 17:29:33,246 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939355346] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 17:29:33,246 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23432552] [2022-03-03 17:29:33,246 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-03 17:29:33,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:29:33,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:29:33,248 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 17:29:33,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-03-03 17:29:33,480 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-03-03 17:29:33,481 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 17:29:33,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 87 conjunts are in the unsatisfiable core [2022-03-03 17:29:33,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 17:29:36,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:29:36,194 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-03 17:29:36,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:29:36,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:29:36,778 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-03-03 17:29:36,778 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 42 [2022-03-03 17:29:38,620 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:29:38,620 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 32 [2022-03-03 17:29:38,636 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 17:29:38,637 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 17:29:39,337 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:29:39,338 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 263 treesize of output 315 [2022-03-03 17:29:39,353 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:29:39,354 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 203 treesize of output 215 [2022-03-03 17:29:39,359 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 94 [2022-03-03 17:29:44,634 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 17:29:44,635 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23432552] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 17:29:44,635 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 17:29:44,635 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 40, 40] total 95 [2022-03-03 17:29:44,635 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100761033] [2022-03-03 17:29:44,635 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 17:29:44,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-03-03 17:29:44,636 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:29:44,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-03-03 17:29:44,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=585, Invalid=8342, Unknown=3, NotChecked=0, Total=8930 [2022-03-03 17:29:44,637 INFO L87 Difference]: Start difference. First operand 54239 states and 196379 transitions. Second operand has 95 states, 95 states have (on average 6.494736842105263) internal successors, (617), 95 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:29:59,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:29:59,738 INFO L93 Difference]: Finished difference Result 60304 states and 215105 transitions. [2022-03-03 17:29:59,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2022-03-03 17:29:59,739 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 95 states have (on average 6.494736842105263) internal successors, (617), 95 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 246 [2022-03-03 17:29:59,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:29:59,930 INFO L225 Difference]: With dead ends: 60304 [2022-03-03 17:29:59,931 INFO L226 Difference]: Without dead ends: 60304 [2022-03-03 17:29:59,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 702 GetRequests, 449 SyntacticMatches, 5 SemanticMatches, 248 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19637 ImplicationChecksByTransitivity, 17.2s TimeCoverageRelationStatistics Valid=7099, Invalid=55147, Unknown=4, NotChecked=0, Total=62250 [2022-03-03 17:29:59,933 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 9744 mSDsluCounter, 11952 mSDsCounter, 0 mSdLazyCounter, 2990 mSolverCounterSat, 705 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9744 SdHoareTripleChecker+Valid, 11561 SdHoareTripleChecker+Invalid, 5336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 705 IncrementalHoareTripleChecker+Valid, 2990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1641 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:29:59,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9744 Valid, 11561 Invalid, 5336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [705 Valid, 2990 Invalid, 0 Unknown, 1641 Unchecked, 1.3s Time] [2022-03-03 17:30:00,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60304 states. [2022-03-03 17:30:01,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60304 to 52713. [2022-03-03 17:30:01,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52713 states, 52712 states have (on average 3.627276521475186) internal successors, (191201), 52712 states have internal predecessors, (191201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:30:01,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52713 states to 52713 states and 191201 transitions. [2022-03-03 17:30:01,706 INFO L78 Accepts]: Start accepts. Automaton has 52713 states and 191201 transitions. Word has length 246 [2022-03-03 17:30:01,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:30:01,706 INFO L470 AbstractCegarLoop]: Abstraction has 52713 states and 191201 transitions. [2022-03-03 17:30:01,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 95 states have (on average 6.494736842105263) internal successors, (617), 95 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:30:01,706 INFO L276 IsEmpty]: Start isEmpty. Operand 52713 states and 191201 transitions. [2022-03-03 17:30:01,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-03 17:30:01,856 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:30:01,856 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:30:01,874 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-03-03 17:30:02,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-03-03 17:30:02,072 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:30:02,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:30:02,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1034227983, now seen corresponding path program 19 times [2022-03-03 17:30:02,074 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:30:02,074 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657368531] [2022-03-03 17:30:02,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:30:02,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:30:02,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:30:03,227 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 14 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-03 17:30:03,227 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:30:03,227 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657368531] [2022-03-03 17:30:03,227 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657368531] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 17:30:03,227 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032248346] [2022-03-03 17:30:03,227 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-03 17:30:03,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:30:03,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:30:03,228 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 17:30:03,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-03-03 17:30:03,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:30:03,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 90 conjunts are in the unsatisfiable core [2022-03-03 17:30:03,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 17:30:06,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:30:06,011 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-03 17:30:06,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:30:06,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:30:06,406 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-03-03 17:30:06,407 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 44 [2022-03-03 17:30:08,066 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:30:08,067 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 33 [2022-03-03 17:30:08,085 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 23 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 17:30:08,085 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 17:30:08,879 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:30:08,880 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 185 treesize of output 245 [2022-03-03 17:30:08,897 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:30:08,897 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 106 treesize of output 124 [2022-03-03 17:30:08,903 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 42 [2022-03-03 17:30:15,991 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 23 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 17:30:15,991 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2032248346] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 17:30:15,991 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 17:30:15,991 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 40, 40] total 104 [2022-03-03 17:30:15,992 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598401280] [2022-03-03 17:30:15,992 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 17:30:15,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 104 states [2022-03-03 17:30:15,993 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:30:15,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2022-03-03 17:30:15,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=561, Invalid=10148, Unknown=3, NotChecked=0, Total=10712 [2022-03-03 17:30:15,994 INFO L87 Difference]: Start difference. First operand 52713 states and 191201 transitions. Second operand has 104 states, 104 states have (on average 5.846153846153846) internal successors, (608), 104 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:30:40,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:30:40,644 INFO L93 Difference]: Finished difference Result 76925 states and 276610 transitions. [2022-03-03 17:30:40,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 185 states. [2022-03-03 17:30:40,645 INFO L78 Accepts]: Start accepts. Automaton has has 104 states, 104 states have (on average 5.846153846153846) internal successors, (608), 104 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 246 [2022-03-03 17:30:40,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:30:40,892 INFO L225 Difference]: With dead ends: 76925 [2022-03-03 17:30:40,892 INFO L226 Difference]: Without dead ends: 76925 [2022-03-03 17:30:40,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 710 GetRequests, 431 SyntacticMatches, 12 SemanticMatches, 267 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22628 ImplicationChecksByTransitivity, 26.7s TimeCoverageRelationStatistics Valid=6880, Invalid=65188, Unknown=24, NotChecked=0, Total=72092 [2022-03-03 17:30:40,896 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 12019 mSDsluCounter, 15926 mSDsCounter, 0 mSdLazyCounter, 4075 mSolverCounterSat, 716 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12019 SdHoareTripleChecker+Valid, 15293 SdHoareTripleChecker+Invalid, 6938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 716 IncrementalHoareTripleChecker+Valid, 4075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2147 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-03 17:30:40,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12019 Valid, 15293 Invalid, 6938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [716 Valid, 4075 Invalid, 0 Unknown, 2147 Unchecked, 1.9s Time] [2022-03-03 17:30:40,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76925 states. [2022-03-03 17:30:42,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76925 to 57950. [2022-03-03 17:30:42,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57950 states, 57949 states have (on average 3.6611330652815406) internal successors, (212159), 57949 states have internal predecessors, (212159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:30:43,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57950 states to 57950 states and 212159 transitions. [2022-03-03 17:30:43,387 INFO L78 Accepts]: Start accepts. Automaton has 57950 states and 212159 transitions. Word has length 246 [2022-03-03 17:30:43,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:30:43,387 INFO L470 AbstractCegarLoop]: Abstraction has 57950 states and 212159 transitions. [2022-03-03 17:30:43,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 104 states, 104 states have (on average 5.846153846153846) internal successors, (608), 104 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:30:43,387 INFO L276 IsEmpty]: Start isEmpty. Operand 57950 states and 212159 transitions. [2022-03-03 17:30:43,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-03 17:30:43,529 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:30:43,529 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:30:43,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-03-03 17:30:43,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:30:43,748 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:30:43,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:30:43,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1713076891, now seen corresponding path program 20 times [2022-03-03 17:30:43,748 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:30:43,748 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437606038] [2022-03-03 17:30:43,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:30:43,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:30:43,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:30:44,244 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-03 17:30:44,244 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:30:44,244 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437606038] [2022-03-03 17:30:44,244 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437606038] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 17:30:44,244 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153242306] [2022-03-03 17:30:44,244 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-03 17:30:44,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:30:44,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:30:44,246 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 17:30:44,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-03-03 17:30:44,460 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-03 17:30:44,460 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 17:30:44,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 93 conjunts are in the unsatisfiable core [2022-03-03 17:30:44,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 17:30:46,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:30:46,809 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-03 17:30:47,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:30:47,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:30:47,111 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-03-03 17:30:47,111 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 42 [2022-03-03 17:30:48,029 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 20 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 17:30:48,029 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 17:30:48,943 INFO L353 Elim1Store]: treesize reduction 40, result has 77.7 percent of original size [2022-03-03 17:30:48,943 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 257 treesize of output 339 [2022-03-03 17:30:48,972 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-03 17:30:48,990 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:30:48,990 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 170 treesize of output 214 [2022-03-03 17:30:49,004 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:30:49,004 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 112 treesize of output 104 [2022-03-03 17:31:06,144 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 20 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 17:31:06,144 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153242306] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 17:31:06,144 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 17:31:06,144 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 39, 40] total 96 [2022-03-03 17:31:06,144 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462823469] [2022-03-03 17:31:06,144 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 17:31:06,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-03-03 17:31:06,145 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:31:06,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-03-03 17:31:06,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=618, Invalid=8501, Unknown=1, NotChecked=0, Total=9120 [2022-03-03 17:31:06,146 INFO L87 Difference]: Start difference. First operand 57950 states and 212159 transitions. Second operand has 96 states, 96 states have (on average 6.447916666666667) internal successors, (619), 96 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:31:19,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:31:19,780 INFO L93 Difference]: Finished difference Result 63587 states and 230163 transitions. [2022-03-03 17:31:19,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 162 states. [2022-03-03 17:31:19,781 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 96 states have (on average 6.447916666666667) internal successors, (619), 96 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 246 [2022-03-03 17:31:19,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:31:19,975 INFO L225 Difference]: With dead ends: 63587 [2022-03-03 17:31:19,976 INFO L226 Difference]: Without dead ends: 63578 [2022-03-03 17:31:19,978 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 688 GetRequests, 443 SyntacticMatches, 9 SemanticMatches, 236 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18080 ImplicationChecksByTransitivity, 14.8s TimeCoverageRelationStatistics Valid=6806, Invalid=49597, Unknown=3, NotChecked=0, Total=56406 [2022-03-03 17:31:19,978 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 7203 mSDsluCounter, 10748 mSDsCounter, 0 mSdLazyCounter, 2737 mSolverCounterSat, 511 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7203 SdHoareTripleChecker+Valid, 10675 SdHoareTripleChecker+Invalid, 4055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 511 IncrementalHoareTripleChecker+Valid, 2737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 807 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:31:19,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7203 Valid, 10675 Invalid, 4055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [511 Valid, 2737 Invalid, 0 Unknown, 807 Unchecked, 1.3s Time] [2022-03-03 17:31:20,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63578 states. [2022-03-03 17:31:21,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63578 to 59578. [2022-03-03 17:31:21,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59578 states, 59577 states have (on average 3.653356160934589) internal successors, (217656), 59577 states have internal predecessors, (217656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:31:21,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59578 states to 59578 states and 217656 transitions. [2022-03-03 17:31:21,856 INFO L78 Accepts]: Start accepts. Automaton has 59578 states and 217656 transitions. Word has length 246 [2022-03-03 17:31:21,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:31:21,857 INFO L470 AbstractCegarLoop]: Abstraction has 59578 states and 217656 transitions. [2022-03-03 17:31:21,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 96 states have (on average 6.447916666666667) internal successors, (619), 96 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:31:21,857 INFO L276 IsEmpty]: Start isEmpty. Operand 59578 states and 217656 transitions. [2022-03-03 17:31:22,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-03 17:31:22,171 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:31:22,171 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:31:22,191 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-03-03 17:31:22,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-03-03 17:31:22,386 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:31:22,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:31:22,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1456328951, now seen corresponding path program 21 times [2022-03-03 17:31:22,387 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:31:22,387 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389931054] [2022-03-03 17:31:22,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:31:22,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:31:22,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:31:23,599 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-03 17:31:23,599 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:31:23,599 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389931054] [2022-03-03 17:31:23,599 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389931054] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 17:31:23,599 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1693400928] [2022-03-03 17:31:23,599 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-03 17:31:23,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:31:23,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:31:23,601 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 17:31:23,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-03-03 17:31:23,834 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-03-03 17:31:23,834 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 17:31:23,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 51 conjunts are in the unsatisfiable core [2022-03-03 17:31:23,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 17:31:25,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:31:25,302 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-03 17:31:25,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:31:25,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-03 17:31:25,638 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-03-03 17:31:25,639 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 42 [2022-03-03 17:31:26,157 INFO L353 Elim1Store]: treesize reduction 19, result has 66.7 percent of original size [2022-03-03 17:31:26,157 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 52 [2022-03-03 17:31:26,238 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-03 17:31:26,239 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 17:31:27,113 INFO L353 Elim1Store]: treesize reduction 40, result has 77.7 percent of original size [2022-03-03 17:31:27,114 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 344 treesize of output 418 [2022-03-03 17:31:27,124 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-03 17:31:27,140 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:31:27,140 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 249 treesize of output 287 [2022-03-03 17:31:27,156 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-03 17:31:27,156 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 180 treesize of output 160 [2022-03-03 17:31:30,247 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-03 17:31:30,247 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1693400928] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 17:31:30,247 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 17:31:30,247 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 23, 23] total 72 [2022-03-03 17:31:30,247 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443125757] [2022-03-03 17:31:30,247 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 17:31:30,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2022-03-03 17:31:30,248 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:31:30,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2022-03-03 17:31:30,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=4872, Unknown=2, NotChecked=0, Total=5112 [2022-03-03 17:31:30,249 INFO L87 Difference]: Start difference. First operand 59578 states and 217656 transitions. Second operand has 72 states, 72 states have (on average 7.972222222222222) internal successors, (574), 72 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:31:34,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:31:34,546 INFO L93 Difference]: Finished difference Result 68009 states and 245835 transitions. [2022-03-03 17:31:34,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-03-03 17:31:34,546 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 72 states have (on average 7.972222222222222) internal successors, (574), 72 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 246 [2022-03-03 17:31:34,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:31:34,761 INFO L225 Difference]: With dead ends: 68009 [2022-03-03 17:31:34,761 INFO L226 Difference]: Without dead ends: 67820 [2022-03-03 17:31:34,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 594 GetRequests, 458 SyntacticMatches, 5 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3783 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=1769, Invalid=15785, Unknown=2, NotChecked=0, Total=17556 [2022-03-03 17:31:34,763 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 3178 mSDsluCounter, 11497 mSDsCounter, 0 mSdLazyCounter, 2275 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3178 SdHoareTripleChecker+Valid, 11160 SdHoareTripleChecker+Invalid, 3148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 2275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 721 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 17:31:34,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3178 Valid, 11160 Invalid, 3148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 2275 Invalid, 0 Unknown, 721 Unchecked, 0.7s Time] [2022-03-03 17:31:34,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67820 states. [2022-03-03 17:31:36,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67820 to 60782. [2022-03-03 17:31:36,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60782 states, 60781 states have (on average 3.645629390763561) internal successors, (221585), 60781 states have internal predecessors, (221585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:31:36,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60782 states to 60782 states and 221585 transitions. [2022-03-03 17:31:36,719 INFO L78 Accepts]: Start accepts. Automaton has 60782 states and 221585 transitions. Word has length 246 [2022-03-03 17:31:36,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:31:36,719 INFO L470 AbstractCegarLoop]: Abstraction has 60782 states and 221585 transitions. [2022-03-03 17:31:36,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 72 states have (on average 7.972222222222222) internal successors, (574), 72 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:31:36,720 INFO L276 IsEmpty]: Start isEmpty. Operand 60782 states and 221585 transitions. [2022-03-03 17:31:37,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-03 17:31:37,078 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:31:37,078 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:31:37,096 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2022-03-03 17:31:37,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:31:37,279 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:31:37,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:31:37,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1546708981, now seen corresponding path program 22 times [2022-03-03 17:31:37,280 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:31:37,280 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896765832] [2022-03-03 17:31:37,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:31:37,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:31:37,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:31:38,174 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-03 17:31:38,174 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:31:38,174 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896765832] [2022-03-03 17:31:38,175 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896765832] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 17:31:38,175 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850911309] [2022-03-03 17:31:38,175 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-03 17:31:38,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:31:38,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:31:38,176 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 17:31:38,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-03-03 17:31:38,354 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-03 17:31:38,354 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 17:31:38,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 96 conjunts are in the unsatisfiable core [2022-03-03 17:31:38,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 17:31:38,395 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-03 17:31:38,434 INFO L353 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-03-03 17:31:38,434 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-03-03 17:31:38,751 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-03-03 17:31:38,751 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 Received shutdown request... [2022-03-03 17:31:39,103 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-03-03 17:31:39,123 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-03-03 17:31:39,130 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-03 17:31:39,137 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-03 17:31:39,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:31:39,304 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was analyzing trace of length 247 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 42 known predicates. [2022-03-03 17:31:39,305 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-03 17:31:39,305 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-03 17:31:39,305 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-03 17:31:39,307 INFO L732 BasicCegarLoop]: Path program histogram: [22, 3, 2, 1, 1, 1, 1] [2022-03-03 17:31:39,308 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-03 17:31:39,309 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-03 17:31:39,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 05:31:39 BasicIcfg [2022-03-03 17:31:39,310 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-03 17:31:39,310 INFO L158 Benchmark]: Toolchain (without parser) took 843090.44ms. Allocated memory was 165.7MB in the beginning and 4.7GB in the end (delta: 4.5GB). Free memory was 114.9MB in the beginning and 2.6GB in the end (delta: -2.5GB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. [2022-03-03 17:31:39,310 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 165.7MB. Free memory is still 131.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-03 17:31:39,310 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.14ms. Allocated memory is still 165.7MB. Free memory was 114.8MB in the beginning and 139.9MB in the end (delta: -25.1MB). Peak memory consumption was 10.9MB. Max. memory is 8.0GB. [2022-03-03 17:31:39,310 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.80ms. Allocated memory is still 165.7MB. Free memory was 139.4MB in the beginning and 137.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-03 17:31:39,310 INFO L158 Benchmark]: Boogie Preprocessor took 42.45ms. Allocated memory is still 165.7MB. Free memory was 137.2MB in the beginning and 135.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-03 17:31:39,311 INFO L158 Benchmark]: RCFGBuilder took 706.87ms. Allocated memory is still 165.7MB. Free memory was 135.1MB in the beginning and 99.4MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. [2022-03-03 17:31:39,311 INFO L158 Benchmark]: TraceAbstraction took 841963.94ms. Allocated memory was 165.7MB in the beginning and 4.7GB in the end (delta: 4.5GB). Free memory was 98.5MB in the beginning and 2.6GB in the end (delta: -2.5GB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. [2022-03-03 17:31:39,311 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 165.7MB. Free memory is still 131.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 309.14ms. Allocated memory is still 165.7MB. Free memory was 114.8MB in the beginning and 139.9MB in the end (delta: -25.1MB). Peak memory consumption was 10.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 56.80ms. Allocated memory is still 165.7MB. Free memory was 139.4MB in the beginning and 137.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 42.45ms. Allocated memory is still 165.7MB. Free memory was 137.2MB in the beginning and 135.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 706.87ms. Allocated memory is still 165.7MB. Free memory was 135.1MB in the beginning and 99.4MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. * TraceAbstraction took 841963.94ms. Allocated memory was 165.7MB in the beginning and 4.7GB in the end (delta: 4.5GB). Free memory was 98.5MB in the beginning and 2.6GB in the end (delta: -2.5GB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 150]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 247 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 42 known predicates. - TimeoutResultAtElement [Line: 143]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 247 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 42 known predicates. - TimeoutResultAtElement [Line: 142]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 247 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 42 known predicates. - TimeoutResultAtElement [Line: 144]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 247 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 42 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 283 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 841.8s, OverallIterations: 31, TraceHistogramMax: 2, PathProgramHistogramMax: 22, EmptinessCheckTime: 2.6s, AutomataDifference: 373.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 181180 SdHoareTripleChecker+Valid, 35.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 181180 mSDsluCounter, 296910 SdHoareTripleChecker+Invalid, 30.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 28591 IncrementalHoareTripleChecker+Unchecked, 304202 mSDsCounter, 11433 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 78312 IncrementalHoareTripleChecker+Invalid, 118336 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11433 mSolverCounterUnsat, 7551 mSDtfsCounter, 78312 mSolverCounterSat, 0.8s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14363 GetRequests, 9236 SyntacticMatches, 180 SemanticMatches, 4947 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 396797 ImplicationChecksByTransitivity, 408.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60782occurred in iteration=30, InterpolantAutomatonStates: 3386, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 27.7s AutomataMinimizationTime, 30 MinimizatonAttempts, 243468 StatesRemovedByMinimization, 28 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 4.0s SatisfiabilityAnalysisTime, 423.3s InterpolantComputationTime, 12236 NumberOfCodeBlocks, 12162 NumberOfCodeBlocksAsserted, 74 NumberOfCheckSat, 17304 ConstructedInterpolants, 933 QuantifiedInterpolants, 345232 SizeOfPredicates, 1120 NumberOfNonLiveVariables, 12204 ConjunctsInSsa, 1702 ConjunctsInUnsatCore, 72 InterpolantComputations, 9 PerfectInterpolantSequences, 535/1538 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown