/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-commit-1.wvr-bad.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-01 15:44:35,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-01 15:44:35,967 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-01 15:44:36,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-01 15:44:36,046 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-01 15:44:36,046 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-01 15:44:36,047 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-01 15:44:36,048 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 [2022-03-01 15:44:36,061 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-01 15:44:36,061 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-01 15:44:36,061 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-01 15:44:36,061 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-01 15:44:36,062 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-01 15:44:36,062 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-01 15:44:36,062 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-01 15:44:36,063 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-01 15:44:36,063 INFO L138 SettingsManager]: * Use SBE=true [2022-03-01 15:44:36,063 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-01 15:44:36,063 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-01 15:44:36,063 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-01 15:44:36,063 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-01 15:44:36,063 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-01 15:44:36,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-01 15:44:36,064 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-01 15:44:36,064 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-01 15:44:36,064 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-01 15:44:36,064 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-01 15:44:36,064 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-01 15:44:36,064 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-01 15:44:36,064 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-01 15:44:36,064 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-01 15:44:36,064 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-01 15:44:36,064 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-01 15:44:36,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 15:44:36,065 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-01 15:44:36,065 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-01 15:44:36,065 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-01 15:44:36,065 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-01 15:44:36,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-01 15:44:36,065 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-01 15:44:36,065 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-01 15:44:36,065 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-01 15:44:36,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-01 15:44:36,279 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-01 15:44:36,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-01 15:44:36,281 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-01 15:44:36,287 INFO L275 PluginConnector]: CDTParser initialized [2022-03-01 15:44:36,288 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-commit-1.wvr-bad.c [2022-03-01 15:44:36,339 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/402f78cc6/3ce7ae8765c84a3fa183bc3a01604945/FLAGd2b766750 [2022-03-01 15:44:36,689 INFO L306 CDTParser]: Found 1 translation units. [2022-03-01 15:44:36,689 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-commit-1.wvr-bad.c [2022-03-01 15:44:36,693 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/402f78cc6/3ce7ae8765c84a3fa183bc3a01604945/FLAGd2b766750 [2022-03-01 15:44:37,133 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/402f78cc6/3ce7ae8765c84a3fa183bc3a01604945 [2022-03-01 15:44:37,134 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-01 15:44:37,135 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-01 15:44:37,138 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-01 15:44:37,138 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-01 15:44:37,144 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-01 15:44:37,144 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.03 03:44:37" (1/1) ... [2022-03-01 15:44:37,145 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f8a065b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:44:37, skipping insertion in model container [2022-03-01 15:44:37,145 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.03 03:44:37" (1/1) ... [2022-03-01 15:44:37,149 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-01 15:44:37,166 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-01 15:44:37,299 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-commit-1.wvr-bad.c[5161,5174] [2022-03-01 15:44:37,308 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-01 15:44:37,315 INFO L203 MainTranslator]: Completed pre-run [2022-03-01 15:44:37,332 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-commit-1.wvr-bad.c[5161,5174] [2022-03-01 15:44:37,334 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-01 15:44:37,343 INFO L208 MainTranslator]: Completed translation [2022-03-01 15:44:37,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:44:37 WrapperNode [2022-03-01 15:44:37,343 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-01 15:44:37,344 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-01 15:44:37,344 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-01 15:44:37,344 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-01 15:44:37,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:44:37" (1/1) ... [2022-03-01 15:44:37,355 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:44:37" (1/1) ... [2022-03-01 15:44:37,373 INFO L137 Inliner]: procedures = 25, calls = 68, calls flagged for inlining = 20, calls inlined = 24, statements flattened = 336 [2022-03-01 15:44:37,373 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-01 15:44:37,374 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-01 15:44:37,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-01 15:44:37,374 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-01 15:44:37,379 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:44:37" (1/1) ... [2022-03-01 15:44:37,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:44:37" (1/1) ... [2022-03-01 15:44:37,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:44:37" (1/1) ... [2022-03-01 15:44:37,383 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:44:37" (1/1) ... [2022-03-01 15:44:37,389 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:44:37" (1/1) ... [2022-03-01 15:44:37,392 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:44:37" (1/1) ... [2022-03-01 15:44:37,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:44:37" (1/1) ... [2022-03-01 15:44:37,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-01 15:44:37,407 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-01 15:44:37,407 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-01 15:44:37,407 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-01 15:44:37,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:44:37" (1/1) ... [2022-03-01 15:44:37,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 15:44:37,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 15:44:37,460 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) [2022-03-01 15:44:37,471 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 [2022-03-01 15:44:37,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-01 15:44:37,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-01 15:44:37,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-01 15:44:37,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-01 15:44:37,494 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-01 15:44:37,494 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-01 15:44:37,494 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-01 15:44:37,494 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-01 15:44:37,495 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-01 15:44:37,495 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-01 15:44:37,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-01 15:44:37,495 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-01 15:44:37,495 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-01 15:44:37,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-01 15:44:37,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-01 15:44:37,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-01 15:44:37,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-01 15:44:37,497 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-01 15:44:37,626 INFO L234 CfgBuilder]: Building ICFG [2022-03-01 15:44:37,627 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-01 15:44:37,986 INFO L275 CfgBuilder]: Performing block encoding [2022-03-01 15:44:38,097 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-01 15:44:38,097 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-03-01 15:44:38,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 03:44:38 BoogieIcfgContainer [2022-03-01 15:44:38,099 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-01 15:44:38,101 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-01 15:44:38,101 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-01 15:44:38,112 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-01 15:44:38,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.03 03:44:37" (1/3) ... [2022-03-01 15:44:38,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f802772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 03:44:38, skipping insertion in model container [2022-03-01 15:44:38,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:44:37" (2/3) ... [2022-03-01 15:44:38,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f802772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 03:44:38, skipping insertion in model container [2022-03-01 15:44:38,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 03:44:38" (3/3) ... [2022-03-01 15:44:38,116 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-bad-commit-1.wvr-bad.c [2022-03-01 15:44:38,122 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-01 15:44:38,122 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-01 15:44:38,122 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-01 15:44:38,123 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-01 15:44:38,172 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,172 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,173 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,173 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,173 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,173 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,173 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,173 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,173 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,173 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,174 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,174 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,174 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,174 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,174 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,174 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,174 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,175 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,175 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,175 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,175 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,176 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,176 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,176 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,177 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,177 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,177 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,177 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,178 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,178 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,178 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,178 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,178 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,178 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,179 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,179 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,179 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,179 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,179 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,179 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,179 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,180 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,180 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,180 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,180 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,180 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,181 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,181 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,181 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,181 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,181 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,182 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,182 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,182 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,182 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,182 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,183 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,183 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,183 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,183 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,184 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,184 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,184 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,184 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,184 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,184 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,184 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,185 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,185 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,185 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,185 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,185 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,185 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,186 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,186 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,186 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,187 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,187 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,187 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,187 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,187 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,187 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,187 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,188 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,188 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,188 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,189 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,191 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,194 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,194 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,194 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,194 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,195 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,195 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,195 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,195 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,196 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,197 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,197 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,197 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,202 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,202 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,202 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,202 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,202 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,202 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,202 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,202 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,203 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,203 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,203 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,204 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,204 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,204 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,204 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,204 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,204 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,204 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,204 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,204 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,204 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,204 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,205 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,205 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,205 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,205 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,205 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,205 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,205 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,205 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,205 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:44:38,208 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-01 15:44:38,247 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-01 15:44:38,253 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 [2022-03-01 15:44:38,254 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-01 15:44:38,263 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 256 places, 273 transitions, 570 flow [2022-03-01 15:44:38,521 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7034 states, 7033 states have (on average 4.403810607137779) internal successors, (30972), 7033 states have internal predecessors, (30972), 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) [2022-03-01 15:44:38,545 INFO L276 IsEmpty]: Start isEmpty. Operand has 7034 states, 7033 states have (on average 4.403810607137779) internal successors, (30972), 7033 states have internal predecessors, (30972), 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) [2022-03-01 15:44:38,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-03-01 15:44:38,585 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:44:38,585 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] [2022-03-01 15:44:38,586 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 15:44:38,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:44:38,590 INFO L85 PathProgramCache]: Analyzing trace with hash -334718937, now seen corresponding path program 1 times [2022-03-01 15:44:38,595 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:44:38,596 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902128620] [2022-03-01 15:44:38,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:44:38,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:44:38,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:44:38,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:44:38,848 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:44:38,849 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902128620] [2022-03-01 15:44:38,851 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902128620] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:44:38,851 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:44:38,851 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-01 15:44:38,852 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054638561] [2022-03-01 15:44:38,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:44:38,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-01 15:44:38,857 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:44:38,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-01 15:44:38,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-01 15:44:38,908 INFO L87 Difference]: Start difference. First operand has 7034 states, 7033 states have (on average 4.403810607137779) internal successors, (30972), 7033 states have internal predecessors, (30972), 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 92.5) internal successors, (185), 2 states have internal predecessors, (185), 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) [2022-03-01 15:44:39,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:44:39,054 INFO L93 Difference]: Finished difference Result 7034 states and 29229 transitions. [2022-03-01 15:44:39,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 15:44:39,056 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 92.5) internal successors, (185), 2 states have internal predecessors, (185), 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 185 [2022-03-01 15:44:39,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:44:39,123 INFO L225 Difference]: With dead ends: 7034 [2022-03-01 15:44:39,123 INFO L226 Difference]: Without dead ends: 7027 [2022-03-01 15:44:39,124 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 [2022-03-01 15:44:39,127 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 15:44:39,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 232 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 15:44:39,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7027 states. [2022-03-01 15:44:39,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7027 to 7027. [2022-03-01 15:44:39,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7027 states, 7026 states have (on average 4.159123256475946) internal successors, (29222), 7026 states have internal predecessors, (29222), 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) [2022-03-01 15:44:39,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7027 states to 7027 states and 29222 transitions. [2022-03-01 15:44:39,437 INFO L78 Accepts]: Start accepts. Automaton has 7027 states and 29222 transitions. Word has length 185 [2022-03-01 15:44:39,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:44:39,437 INFO L470 AbstractCegarLoop]: Abstraction has 7027 states and 29222 transitions. [2022-03-01 15:44:39,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 92.5) internal successors, (185), 2 states have internal predecessors, (185), 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) [2022-03-01 15:44:39,438 INFO L276 IsEmpty]: Start isEmpty. Operand 7027 states and 29222 transitions. [2022-03-01 15:44:39,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-03-01 15:44:39,463 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:44:39,464 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] [2022-03-01 15:44:39,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-01 15:44:39,464 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 15:44:39,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:44:39,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1026742673, now seen corresponding path program 1 times [2022-03-01 15:44:39,467 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:44:39,467 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144795457] [2022-03-01 15:44:39,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:44:39,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:44:39,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:44:39,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:44:39,762 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:44:39,763 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144795457] [2022-03-01 15:44:39,763 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144795457] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:44:39,763 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:44:39,763 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-01 15:44:39,763 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546726634] [2022-03-01 15:44:39,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:44:39,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-01 15:44:39,765 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:44:39,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-01 15:44:39,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-01 15:44:39,766 INFO L87 Difference]: Start difference. First operand 7027 states and 29222 transitions. Second operand has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 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) [2022-03-01 15:44:40,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:44:40,057 INFO L93 Difference]: Finished difference Result 13887 states and 58274 transitions. [2022-03-01 15:44:40,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-01 15:44:40,057 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 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 188 [2022-03-01 15:44:40,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:44:40,161 INFO L225 Difference]: With dead ends: 13887 [2022-03-01 15:44:40,161 INFO L226 Difference]: Without dead ends: 13565 [2022-03-01 15:44:40,164 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 [2022-03-01 15:44:40,168 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 51 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:44:40,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 727 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:44:40,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13565 states. [2022-03-01 15:44:40,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13565 to 11589. [2022-03-01 15:44:40,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11589 states, 11588 states have (on average 4.234294097342078) internal successors, (49067), 11588 states have internal predecessors, (49067), 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) [2022-03-01 15:44:40,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11589 states to 11589 states and 49067 transitions. [2022-03-01 15:44:40,652 INFO L78 Accepts]: Start accepts. Automaton has 11589 states and 49067 transitions. Word has length 188 [2022-03-01 15:44:40,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:44:40,652 INFO L470 AbstractCegarLoop]: Abstraction has 11589 states and 49067 transitions. [2022-03-01 15:44:40,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 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) [2022-03-01 15:44:40,653 INFO L276 IsEmpty]: Start isEmpty. Operand 11589 states and 49067 transitions. [2022-03-01 15:44:40,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-03-01 15:44:40,687 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:44:40,688 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] [2022-03-01 15:44:40,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-01 15:44:40,688 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 15:44:40,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:44:40,688 INFO L85 PathProgramCache]: Analyzing trace with hash 146949394, now seen corresponding path program 1 times [2022-03-01 15:44:40,689 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:44:40,689 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028112536] [2022-03-01 15:44:40,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:44:40,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:44:40,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:44:40,911 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:44:40,911 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:44:40,911 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028112536] [2022-03-01 15:44:40,911 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028112536] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:44:40,911 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:44:40,912 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-01 15:44:40,912 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43509669] [2022-03-01 15:44:40,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:44:40,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-01 15:44:40,913 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:44:40,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-01 15:44:40,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 15:44:40,913 INFO L87 Difference]: Start difference. First operand 11589 states and 49067 transitions. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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) [2022-03-01 15:44:41,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:44:41,370 INFO L93 Difference]: Finished difference Result 23014 states and 97293 transitions. [2022-03-01 15:44:41,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 15:44:41,371 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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 192 [2022-03-01 15:44:41,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:44:41,546 INFO L225 Difference]: With dead ends: 23014 [2022-03-01 15:44:41,546 INFO L226 Difference]: Without dead ends: 22420 [2022-03-01 15:44:41,554 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 [2022-03-01 15:44:41,556 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 48 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 15:44:41,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 400 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 15:44:41,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22420 states. [2022-03-01 15:44:42,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22420 to 17850. [2022-03-01 15:44:42,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17850 states, 17849 states have (on average 4.327413300465012) internal successors, (77240), 17849 states have internal predecessors, (77240), 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) [2022-03-01 15:44:42,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17850 states to 17850 states and 77240 transitions. [2022-03-01 15:44:42,412 INFO L78 Accepts]: Start accepts. Automaton has 17850 states and 77240 transitions. Word has length 192 [2022-03-01 15:44:42,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:44:42,413 INFO L470 AbstractCegarLoop]: Abstraction has 17850 states and 77240 transitions. [2022-03-01 15:44:42,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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) [2022-03-01 15:44:42,413 INFO L276 IsEmpty]: Start isEmpty. Operand 17850 states and 77240 transitions. [2022-03-01 15:44:42,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-03-01 15:44:42,477 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:44:42,477 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] [2022-03-01 15:44:42,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-01 15:44:42,478 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 15:44:42,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:44:42,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1010040120, now seen corresponding path program 1 times [2022-03-01 15:44:42,478 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:44:42,478 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330114964] [2022-03-01 15:44:42,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:44:42,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:44:42,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:44:42,600 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:44:42,600 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:44:42,600 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330114964] [2022-03-01 15:44:42,601 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330114964] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:44:42,601 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:44:42,601 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-01 15:44:42,601 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337441802] [2022-03-01 15:44:42,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:44:42,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-01 15:44:42,602 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:44:42,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-01 15:44:42,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 15:44:42,602 INFO L87 Difference]: Start difference. First operand 17850 states and 77240 transitions. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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) [2022-03-01 15:44:43,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:44:43,072 INFO L93 Difference]: Finished difference Result 34720 states and 150369 transitions. [2022-03-01 15:44:43,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 15:44:43,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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 192 [2022-03-01 15:44:43,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:44:43,305 INFO L225 Difference]: With dead ends: 34720 [2022-03-01 15:44:43,305 INFO L226 Difference]: Without dead ends: 34048 [2022-03-01 15:44:43,305 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 [2022-03-01 15:44:43,306 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 84 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 15:44:43,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 316 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 15:44:43,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34048 states. [2022-03-01 15:44:44,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34048 to 28858. [2022-03-01 15:44:44,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28858 states, 28857 states have (on average 4.421804068336972) internal successors, (127600), 28857 states have internal predecessors, (127600), 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) [2022-03-01 15:44:44,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28858 states to 28858 states and 127600 transitions. [2022-03-01 15:44:44,317 INFO L78 Accepts]: Start accepts. Automaton has 28858 states and 127600 transitions. Word has length 192 [2022-03-01 15:44:44,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:44:44,317 INFO L470 AbstractCegarLoop]: Abstraction has 28858 states and 127600 transitions. [2022-03-01 15:44:44,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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) [2022-03-01 15:44:44,318 INFO L276 IsEmpty]: Start isEmpty. Operand 28858 states and 127600 transitions. [2022-03-01 15:44:44,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-03-01 15:44:44,410 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:44:44,410 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] [2022-03-01 15:44:44,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-01 15:44:44,411 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 15:44:44,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:44:44,411 INFO L85 PathProgramCache]: Analyzing trace with hash 443362995, now seen corresponding path program 1 times [2022-03-01 15:44:44,411 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:44:44,411 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894790259] [2022-03-01 15:44:44,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:44:44,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:44:44,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:44:44,494 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:44:44,494 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:44:44,494 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894790259] [2022-03-01 15:44:44,494 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894790259] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:44:44,495 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:44:44,495 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-01 15:44:44,495 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712631003] [2022-03-01 15:44:44,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:44:44,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-01 15:44:44,496 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:44:44,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-01 15:44:44,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 15:44:44,496 INFO L87 Difference]: Start difference. First operand 28858 states and 127600 transitions. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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) [2022-03-01 15:44:45,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:44:45,253 INFO L93 Difference]: Finished difference Result 36678 states and 158104 transitions. [2022-03-01 15:44:45,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 15:44:45,254 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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 193 [2022-03-01 15:44:45,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:44:45,470 INFO L225 Difference]: With dead ends: 36678 [2022-03-01 15:44:45,471 INFO L226 Difference]: Without dead ends: 36678 [2022-03-01 15:44:45,471 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 [2022-03-01 15:44:45,472 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 62 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:44:45,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 291 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:44:45,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36678 states. [2022-03-01 15:44:46,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36678 to 30785. [2022-03-01 15:44:46,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30785 states, 30784 states have (on average 4.354404885654886) internal successors, (134046), 30784 states have internal predecessors, (134046), 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) [2022-03-01 15:44:46,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30785 states to 30785 states and 134046 transitions. [2022-03-01 15:44:46,447 INFO L78 Accepts]: Start accepts. Automaton has 30785 states and 134046 transitions. Word has length 193 [2022-03-01 15:44:46,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:44:46,447 INFO L470 AbstractCegarLoop]: Abstraction has 30785 states and 134046 transitions. [2022-03-01 15:44:46,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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) [2022-03-01 15:44:46,447 INFO L276 IsEmpty]: Start isEmpty. Operand 30785 states and 134046 transitions. [2022-03-01 15:44:46,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-03-01 15:44:46,717 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:44:46,717 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] [2022-03-01 15:44:46,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-01 15:44:46,718 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 15:44:46,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:44:46,719 INFO L85 PathProgramCache]: Analyzing trace with hash -679441705, now seen corresponding path program 1 times [2022-03-01 15:44:46,719 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:44:46,719 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872210245] [2022-03-01 15:44:46,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:44:46,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:44:46,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:44:46,860 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:44:46,861 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:44:46,861 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872210245] [2022-03-01 15:44:46,861 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872210245] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:44:46,861 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:44:46,861 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-01 15:44:46,861 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628246093] [2022-03-01 15:44:46,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:44:46,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-01 15:44:46,862 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:44:46,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-01 15:44:46,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-01 15:44:46,863 INFO L87 Difference]: Start difference. First operand 30785 states and 134046 transitions. Second operand has 6 states, 6 states have (on average 32.666666666666664) internal successors, (196), 6 states have internal predecessors, (196), 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) [2022-03-01 15:44:47,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:44:47,241 INFO L93 Difference]: Finished difference Result 42783 states and 178873 transitions. [2022-03-01 15:44:47,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-01 15:44:47,241 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.666666666666664) internal successors, (196), 6 states have internal predecessors, (196), 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 196 [2022-03-01 15:44:47,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:44:47,618 INFO L225 Difference]: With dead ends: 42783 [2022-03-01 15:44:47,619 INFO L226 Difference]: Without dead ends: 36321 [2022-03-01 15:44:47,619 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 [2022-03-01 15:44:47,620 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 197 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:44:47,620 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 787 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:44:47,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36321 states. [2022-03-01 15:44:48,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36321 to 35479. [2022-03-01 15:44:48,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35479 states, 35478 states have (on average 4.263233553187891) internal successors, (151251), 35478 states have internal predecessors, (151251), 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) [2022-03-01 15:44:48,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35479 states to 35479 states and 151251 transitions. [2022-03-01 15:44:48,713 INFO L78 Accepts]: Start accepts. Automaton has 35479 states and 151251 transitions. Word has length 196 [2022-03-01 15:44:48,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:44:48,713 INFO L470 AbstractCegarLoop]: Abstraction has 35479 states and 151251 transitions. [2022-03-01 15:44:48,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.666666666666664) internal successors, (196), 6 states have internal predecessors, (196), 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) [2022-03-01 15:44:48,713 INFO L276 IsEmpty]: Start isEmpty. Operand 35479 states and 151251 transitions. [2022-03-01 15:44:48,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-01 15:44:48,807 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:44:48,807 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] [2022-03-01 15:44:48,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-01 15:44:48,808 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 15:44:48,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:44:48,808 INFO L85 PathProgramCache]: Analyzing trace with hash 24820010, now seen corresponding path program 1 times [2022-03-01 15:44:48,808 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:44:48,808 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928704530] [2022-03-01 15:44:48,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:44:48,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:44:48,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:44:48,851 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 15:44:48,852 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:44:48,852 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928704530] [2022-03-01 15:44:48,852 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928704530] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:44:48,852 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:44:48,852 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-01 15:44:48,852 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632294765] [2022-03-01 15:44:48,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:44:48,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-01 15:44:48,852 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:44:48,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-01 15:44:48,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 15:44:48,853 INFO L87 Difference]: Start difference. First operand 35479 states and 151251 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:49,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:44:49,298 INFO L93 Difference]: Finished difference Result 25320 states and 104975 transitions. [2022-03-01 15:44:49,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 15:44:49,299 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-03-01 15:44:49,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:44:49,393 INFO L225 Difference]: With dead ends: 25320 [2022-03-01 15:44:49,393 INFO L226 Difference]: Without dead ends: 24769 [2022-03-01 15:44:49,393 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 [2022-03-01 15:44:49,394 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 78 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 15:44:49,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 296 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 15:44:49,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24769 states. [2022-03-01 15:44:49,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24769 to 19684. [2022-03-01 15:44:49,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19684 states, 19683 states have (on average 4.256566580297719) internal successors, (83782), 19683 states have internal predecessors, (83782), 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) [2022-03-01 15:44:49,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19684 states to 19684 states and 83782 transitions. [2022-03-01 15:44:49,982 INFO L78 Accepts]: Start accepts. Automaton has 19684 states and 83782 transitions. Word has length 197 [2022-03-01 15:44:49,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:44:49,982 INFO L470 AbstractCegarLoop]: Abstraction has 19684 states and 83782 transitions. [2022-03-01 15:44:49,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:49,983 INFO L276 IsEmpty]: Start isEmpty. Operand 19684 states and 83782 transitions. [2022-03-01 15:44:50,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-03-01 15:44:50,032 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:44:50,032 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] [2022-03-01 15:44:50,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-01 15:44:50,033 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 15:44:50,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:44:50,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1695141506, now seen corresponding path program 1 times [2022-03-01 15:44:50,033 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:44:50,033 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059706732] [2022-03-01 15:44:50,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:44:50,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:44:50,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:44:50,574 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:44:50,574 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:44:50,574 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059706732] [2022-03-01 15:44:50,574 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059706732] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 15:44:50,574 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119966216] [2022-03-01 15:44:50,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:44:50,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 15:44:50,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 15:44:50,576 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) [2022-03-01 15:44:50,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-01 15:44:50,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:44:50,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 44 conjunts are in the unsatisfiable core [2022-03-01 15:44:50,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 15:44:51,526 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 11 [2022-03-01 15:44:52,595 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 [2022-03-01 15:44:52,705 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 [2022-03-01 15:44:52,800 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 [2022-03-01 15:44:52,978 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:44:52,978 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 15:44:54,497 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-01 15:44:54,497 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 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 61 treesize of output 50 [2022-03-01 15:44:54,507 INFO L353 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2022-03-01 15:44:54,508 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 398 treesize of output 373 [2022-03-01 15:44:54,515 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 15:44:54,516 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 183 treesize of output 135 [2022-03-01 15:44:54,524 INFO L353 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-03-01 15:44:54,524 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 318 treesize of output 222 [2022-03-01 15:44:54,533 INFO L353 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-03-01 15:44:54,533 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 222 treesize of output 198 [2022-03-01 15:44:55,225 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:44:55,225 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2119966216] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 15:44:55,225 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 15:44:55,225 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 24, 20] total 54 [2022-03-01 15:44:55,226 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840093857] [2022-03-01 15:44:55,226 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 15:44:55,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-03-01 15:44:55,226 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:44:55,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-03-01 15:44:55,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=462, Invalid=2335, Unknown=65, NotChecked=0, Total=2862 [2022-03-01 15:44:55,228 INFO L87 Difference]: Start difference. First operand 19684 states and 83782 transitions. Second operand has 54 states, 54 states have (on average 9.796296296296296) internal successors, (529), 54 states have internal predecessors, (529), 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) [2022-03-01 15:44:58,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:44:58,715 INFO L93 Difference]: Finished difference Result 109087 states and 470653 transitions. [2022-03-01 15:44:58,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-01 15:44:58,715 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 9.796296296296296) internal successors, (529), 54 states have internal predecessors, (529), 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 203 [2022-03-01 15:44:58,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:44:59,533 INFO L225 Difference]: With dead ends: 109087 [2022-03-01 15:44:59,533 INFO L226 Difference]: Without dead ends: 106981 [2022-03-01 15:44:59,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 369 SyntacticMatches, 2 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2044 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1634, Invalid=6491, Unknown=65, NotChecked=0, Total=8190 [2022-03-01 15:44:59,535 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 3202 mSDsluCounter, 6079 mSDsCounter, 0 mSdLazyCounter, 1473 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3202 SdHoareTripleChecker+Valid, 5869 SdHoareTripleChecker+Invalid, 2226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 661 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:44:59,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3202 Valid, 5869 Invalid, 2226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1473 Invalid, 0 Unknown, 661 Unchecked, 0.8s Time] [2022-03-01 15:44:59,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106981 states. [2022-03-01 15:45:01,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106981 to 55860. [2022-03-01 15:45:01,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55860 states, 55859 states have (on average 4.613544818202976) internal successors, (257708), 55859 states have internal predecessors, (257708), 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) [2022-03-01 15:45:02,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55860 states to 55860 states and 257708 transitions. [2022-03-01 15:45:02,260 INFO L78 Accepts]: Start accepts. Automaton has 55860 states and 257708 transitions. Word has length 203 [2022-03-01 15:45:02,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:45:02,260 INFO L470 AbstractCegarLoop]: Abstraction has 55860 states and 257708 transitions. [2022-03-01 15:45:02,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 9.796296296296296) internal successors, (529), 54 states have internal predecessors, (529), 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) [2022-03-01 15:45:02,261 INFO L276 IsEmpty]: Start isEmpty. Operand 55860 states and 257708 transitions. [2022-03-01 15:45:02,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-03-01 15:45:02,430 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:45:02,430 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-03-01 15:45:02,447 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-01 15:45:02,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 15:45:02,631 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 15:45:02,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:45:02,632 INFO L85 PathProgramCache]: Analyzing trace with hash 135101103, now seen corresponding path program 1 times [2022-03-01 15:45:02,632 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:45:02,632 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589713478] [2022-03-01 15:45:02,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:45:02,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:45:02,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:45:02,708 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-01 15:45:02,708 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:45:02,708 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589713478] [2022-03-01 15:45:02,709 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589713478] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:45:02,709 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:45:02,709 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-01 15:45:02,709 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283948848] [2022-03-01 15:45:02,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:45:02,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-01 15:45:02,709 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:45:02,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-01 15:45:02,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-01 15:45:02,710 INFO L87 Difference]: Start difference. First operand 55860 states and 257708 transitions. Second operand has 4 states, 4 states have (on average 50.5) internal successors, (202), 4 states have internal predecessors, (202), 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) [2022-03-01 15:45:03,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:45:03,609 INFO L93 Difference]: Finished difference Result 89384 states and 406180 transitions. [2022-03-01 15:45:03,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-01 15:45:03,609 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.5) internal successors, (202), 4 states have internal predecessors, (202), 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 204 [2022-03-01 15:45:03,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:45:04,286 INFO L225 Difference]: With dead ends: 89384 [2022-03-01 15:45:04,286 INFO L226 Difference]: Without dead ends: 87464 [2022-03-01 15:45:04,286 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-01 15:45:04,286 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 271 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 15:45:04,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [271 Valid, 354 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 15:45:04,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87464 states. [2022-03-01 15:45:06,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87464 to 78183. [2022-03-01 15:45:06,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78183 states, 78182 states have (on average 4.592847458494282) internal successors, (359078), 78182 states have internal predecessors, (359078), 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) [2022-03-01 15:45:07,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78183 states to 78183 states and 359078 transitions. [2022-03-01 15:45:07,214 INFO L78 Accepts]: Start accepts. Automaton has 78183 states and 359078 transitions. Word has length 204 [2022-03-01 15:45:07,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:45:07,215 INFO L470 AbstractCegarLoop]: Abstraction has 78183 states and 359078 transitions. [2022-03-01 15:45:07,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.5) internal successors, (202), 4 states have internal predecessors, (202), 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) [2022-03-01 15:45:07,215 INFO L276 IsEmpty]: Start isEmpty. Operand 78183 states and 359078 transitions. [2022-03-01 15:45:07,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-03-01 15:45:07,440 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:45:07,440 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] [2022-03-01 15:45:07,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-01 15:45:07,441 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 15:45:07,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:45:07,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1753008808, now seen corresponding path program 1 times [2022-03-01 15:45:07,441 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:45:07,441 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652286360] [2022-03-01 15:45:07,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:45:07,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:45:07,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:45:07,501 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 15:45:07,501 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:45:07,501 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652286360] [2022-03-01 15:45:07,501 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652286360] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:45:07,501 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:45:07,501 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-01 15:45:07,501 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529470662] [2022-03-01 15:45:07,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:45:07,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-01 15:45:07,502 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:45:07,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-01 15:45:07,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 15:45:07,502 INFO L87 Difference]: Start difference. First operand 78183 states and 359078 transitions. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 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) [2022-03-01 15:45:08,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:45:08,686 INFO L93 Difference]: Finished difference Result 82121 states and 370039 transitions. [2022-03-01 15:45:08,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 15:45:08,690 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 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 204 [2022-03-01 15:45:08,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:45:09,080 INFO L225 Difference]: With dead ends: 82121 [2022-03-01 15:45:09,080 INFO L226 Difference]: Without dead ends: 80941 [2022-03-01 15:45:09,080 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 [2022-03-01 15:45:09,081 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 57 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 15:45:09,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 291 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 15:45:09,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80941 states. [2022-03-01 15:45:10,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80941 to 60992. [2022-03-01 15:45:11,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60992 states, 60991 states have (on average 4.587873620698136) internal successors, (279819), 60991 states have internal predecessors, (279819), 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) [2022-03-01 15:45:11,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60992 states to 60992 states and 279819 transitions. [2022-03-01 15:45:11,364 INFO L78 Accepts]: Start accepts. Automaton has 60992 states and 279819 transitions. Word has length 204 [2022-03-01 15:45:11,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:45:11,365 INFO L470 AbstractCegarLoop]: Abstraction has 60992 states and 279819 transitions. [2022-03-01 15:45:11,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 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) [2022-03-01 15:45:11,365 INFO L276 IsEmpty]: Start isEmpty. Operand 60992 states and 279819 transitions. [2022-03-01 15:45:11,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-03-01 15:45:11,820 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:45:11,820 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-03-01 15:45:11,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-01 15:45:11,821 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 15:45:11,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:45:11,821 INFO L85 PathProgramCache]: Analyzing trace with hash 2132101305, now seen corresponding path program 2 times [2022-03-01 15:45:11,821 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:45:11,821 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583417372] [2022-03-01 15:45:11,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:45:11,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:45:11,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:45:11,855 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 15:45:11,855 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:45:11,855 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583417372] [2022-03-01 15:45:11,855 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583417372] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:45:11,855 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:45:11,856 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-01 15:45:11,856 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530344119] [2022-03-01 15:45:11,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:45:11,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-01 15:45:11,856 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:45:11,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-01 15:45:11,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 15:45:11,857 INFO L87 Difference]: Start difference. First operand 60992 states and 279819 transitions. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:12,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:45:12,634 INFO L93 Difference]: Finished difference Result 74701 states and 334914 transitions. [2022-03-01 15:45:12,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 15:45:12,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 207 [2022-03-01 15:45:12,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:45:13,015 INFO L225 Difference]: With dead ends: 74701 [2022-03-01 15:45:13,016 INFO L226 Difference]: Without dead ends: 74701 [2022-03-01 15:45:13,016 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 [2022-03-01 15:45:13,016 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 48 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 15:45:13,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 470 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 15:45:13,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74701 states. [2022-03-01 15:45:15,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74701 to 67622. [2022-03-01 15:45:15,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67622 states, 67621 states have (on average 4.540409044527587) internal successors, (307027), 67621 states have internal predecessors, (307027), 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) [2022-03-01 15:45:15,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67622 states to 67622 states and 307027 transitions. [2022-03-01 15:45:15,821 INFO L78 Accepts]: Start accepts. Automaton has 67622 states and 307027 transitions. Word has length 207 [2022-03-01 15:45:15,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:45:15,822 INFO L470 AbstractCegarLoop]: Abstraction has 67622 states and 307027 transitions. [2022-03-01 15:45:15,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:15,822 INFO L276 IsEmpty]: Start isEmpty. Operand 67622 states and 307027 transitions. [2022-03-01 15:45:16,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-03-01 15:45:16,023 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:45:16,023 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2022-03-01 15:45:16,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-01 15:45:16,023 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 15:45:16,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:45:16,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1485031249, now seen corresponding path program 1 times [2022-03-01 15:45:16,024 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:45:16,024 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750078294] [2022-03-01 15:45:16,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:45:16,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:45:16,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:45:16,072 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-03-01 15:45:16,072 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:45:16,072 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750078294] [2022-03-01 15:45:16,072 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750078294] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:45:16,072 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:45:16,072 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-01 15:45:16,073 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229655010] [2022-03-01 15:45:16,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:45:16,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-01 15:45:16,073 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:45:16,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-01 15:45:16,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 15:45:16,073 INFO L87 Difference]: Start difference. First operand 67622 states and 307027 transitions. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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) [2022-03-01 15:45:17,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:45:17,148 INFO L93 Difference]: Finished difference Result 85809 states and 380477 transitions. [2022-03-01 15:45:17,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 15:45:17,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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 212 [2022-03-01 15:45:17,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:45:17,771 INFO L225 Difference]: With dead ends: 85809 [2022-03-01 15:45:17,772 INFO L226 Difference]: Without dead ends: 85809 [2022-03-01 15:45:17,772 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 [2022-03-01 15:45:17,773 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 49 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 15:45:17,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 461 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 15:45:18,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85809 states. [2022-03-01 15:45:19,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85809 to 63310. [2022-03-01 15:45:19,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63310 states, 63309 states have (on average 4.512802287194554) internal successors, (285701), 63309 states have internal predecessors, (285701), 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) [2022-03-01 15:45:20,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63310 states to 63310 states and 285701 transitions. [2022-03-01 15:45:20,527 INFO L78 Accepts]: Start accepts. Automaton has 63310 states and 285701 transitions. Word has length 212 [2022-03-01 15:45:20,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:45:20,528 INFO L470 AbstractCegarLoop]: Abstraction has 63310 states and 285701 transitions. [2022-03-01 15:45:20,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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) [2022-03-01 15:45:20,528 INFO L276 IsEmpty]: Start isEmpty. Operand 63310 states and 285701 transitions. [2022-03-01 15:45:20,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-03-01 15:45:20,666 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:45:20,666 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-03-01 15:45:20,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-01 15:45:20,667 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 15:45:20,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:45:20,667 INFO L85 PathProgramCache]: Analyzing trace with hash -430633187, now seen corresponding path program 1 times [2022-03-01 15:45:20,667 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:45:20,667 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889817853] [2022-03-01 15:45:20,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:45:20,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:45:20,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:45:20,738 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-03-01 15:45:20,738 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:45:20,738 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889817853] [2022-03-01 15:45:20,738 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889817853] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:45:20,739 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:45:20,739 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-01 15:45:20,739 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006305095] [2022-03-01 15:45:20,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:45:20,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-01 15:45:20,739 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:45:20,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-01 15:45:20,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-01 15:45:20,740 INFO L87 Difference]: Start difference. First operand 63310 states and 285701 transitions. Second operand has 6 states, 6 states have (on average 35.0) internal successors, (210), 6 states have internal predecessors, (210), 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) [2022-03-01 15:45:21,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:45:21,563 INFO L93 Difference]: Finished difference Result 69416 states and 307349 transitions. [2022-03-01 15:45:21,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-01 15:45:21,563 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 35.0) internal successors, (210), 6 states have internal predecessors, (210), 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 212 [2022-03-01 15:45:21,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:45:21,867 INFO L225 Difference]: With dead ends: 69416 [2022-03-01 15:45:21,868 INFO L226 Difference]: Without dead ends: 63322 [2022-03-01 15:45:21,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-03-01 15:45:21,868 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 498 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:45:21,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [498 Valid, 645 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:45:22,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63322 states. [2022-03-01 15:45:23,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63322 to 63312. [2022-03-01 15:45:23,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63312 states, 63311 states have (on average 4.512691317464579) internal successors, (285703), 63311 states have internal predecessors, (285703), 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) [2022-03-01 15:45:24,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63312 states to 63312 states and 285703 transitions. [2022-03-01 15:45:24,019 INFO L78 Accepts]: Start accepts. Automaton has 63312 states and 285703 transitions. Word has length 212 [2022-03-01 15:45:24,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:45:24,019 INFO L470 AbstractCegarLoop]: Abstraction has 63312 states and 285703 transitions. [2022-03-01 15:45:24,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 35.0) internal successors, (210), 6 states have internal predecessors, (210), 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) [2022-03-01 15:45:24,019 INFO L276 IsEmpty]: Start isEmpty. Operand 63312 states and 285703 transitions. [2022-03-01 15:45:24,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-03-01 15:45:24,153 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:45:24,154 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-03-01 15:45:24,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-01 15:45:24,154 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 15:45:24,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:45:24,154 INFO L85 PathProgramCache]: Analyzing trace with hash 2005935847, now seen corresponding path program 1 times [2022-03-01 15:45:24,154 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:45:24,154 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960329508] [2022-03-01 15:45:24,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:45:24,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:45:24,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:45:24,968 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 15:45:24,968 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:45:24,968 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960329508] [2022-03-01 15:45:24,969 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960329508] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 15:45:24,969 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841644701] [2022-03-01 15:45:24,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:45:24,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 15:45:24,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 15:45:24,970 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) [2022-03-01 15:45:24,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-01 15:45:25,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:45:25,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 32 conjunts are in the unsatisfiable core [2022-03-01 15:45:25,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 15:45:26,190 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-03-01 15:45:26,190 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 15:45:26,285 INFO L353 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2022-03-01 15:45:26,285 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 19 treesize of output 11 [2022-03-01 15:45:27,203 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-03-01 15:45:27,203 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841644701] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 15:45:27,203 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 15:45:27,203 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 18, 13] total 41 [2022-03-01 15:45:27,203 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029406235] [2022-03-01 15:45:27,203 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 15:45:27,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-03-01 15:45:27,204 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:45:27,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-03-01 15:45:27,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=257, Invalid=1383, Unknown=0, NotChecked=0, Total=1640 [2022-03-01 15:45:27,205 INFO L87 Difference]: Start difference. First operand 63312 states and 285703 transitions. Second operand has 41 states, 41 states have (on average 9.926829268292684) internal successors, (407), 41 states have internal predecessors, (407), 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) [2022-03-01 15:45:34,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:45:34,082 INFO L93 Difference]: Finished difference Result 450095 states and 1995961 transitions. [2022-03-01 15:45:34,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-01 15:45:34,083 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 9.926829268292684) internal successors, (407), 41 states have internal predecessors, (407), 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 219 [2022-03-01 15:45:34,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:45:38,125 INFO L225 Difference]: With dead ends: 450095 [2022-03-01 15:45:38,125 INFO L226 Difference]: Without dead ends: 446905 [2022-03-01 15:45:38,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 498 GetRequests, 412 SyntacticMatches, 7 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1895 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1129, Invalid=5351, Unknown=0, NotChecked=0, Total=6480 [2022-03-01 15:45:38,127 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 3823 mSDsluCounter, 5569 mSDsCounter, 0 mSdLazyCounter, 1883 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3823 SdHoareTripleChecker+Valid, 5561 SdHoareTripleChecker+Invalid, 1998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 1883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 15:45:38,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3823 Valid, 5561 Invalid, 1998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 1883 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 15:45:39,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446905 states. [2022-03-01 15:45:48,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446905 to 156628. [2022-03-01 15:45:49,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156628 states, 156627 states have (on average 4.714334054792596) internal successors, (738392), 156627 states have internal predecessors, (738392), 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) [2022-03-01 15:45:50,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156628 states to 156628 states and 738392 transitions. [2022-03-01 15:45:50,353 INFO L78 Accepts]: Start accepts. Automaton has 156628 states and 738392 transitions. Word has length 219 [2022-03-01 15:45:50,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:45:50,354 INFO L470 AbstractCegarLoop]: Abstraction has 156628 states and 738392 transitions. [2022-03-01 15:45:50,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 9.926829268292684) internal successors, (407), 41 states have internal predecessors, (407), 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) [2022-03-01 15:45:50,354 INFO L276 IsEmpty]: Start isEmpty. Operand 156628 states and 738392 transitions. [2022-03-01 15:45:51,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-03-01 15:45:51,034 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:45:51,034 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2022-03-01 15:45:51,054 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-01 15:45:51,254 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,SelfDestructingSolverStorable13 [2022-03-01 15:45:51,254 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 15:45:51,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:45:51,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1969667416, now seen corresponding path program 1 times [2022-03-01 15:45:51,255 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:45:51,255 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211416770] [2022-03-01 15:45:51,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:45:51,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:45:51,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:45:51,452 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-03-01 15:45:51,452 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:45:51,453 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211416770] [2022-03-01 15:45:51,453 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211416770] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 15:45:51,453 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76391] [2022-03-01 15:45:51,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:45:51,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 15:45:51,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 15:45:51,454 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) [2022-03-01 15:45:51,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-01 15:45:51,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:45:51,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 14 conjunts are in the unsatisfiable core [2022-03-01 15:45:51,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 15:45:52,310 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-03-01 15:45:52,310 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 15:45:53,534 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-03-01 15:45:53,535 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [76391] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 15:45:53,535 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 15:45:53,535 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 29 [2022-03-01 15:45:53,535 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740428686] [2022-03-01 15:45:53,535 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 15:45:53,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-03-01 15:45:53,536 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:45:53,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-03-01 15:45:53,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=625, Unknown=0, NotChecked=0, Total=812 [2022-03-01 15:45:53,536 INFO L87 Difference]: Start difference. First operand 156628 states and 738392 transitions. Second operand has 29 states, 29 states have (on average 18.482758620689655) internal successors, (536), 29 states have internal predecessors, (536), 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) [2022-03-01 15:45:55,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:45:55,231 INFO L93 Difference]: Finished difference Result 116071 states and 509706 transitions. [2022-03-01 15:45:55,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-01 15:45:55,232 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 18.482758620689655) internal successors, (536), 29 states have internal predecessors, (536), 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 221 [2022-03-01 15:45:55,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:45:55,981 INFO L225 Difference]: With dead ends: 116071 [2022-03-01 15:45:55,981 INFO L226 Difference]: Without dead ends: 97519 [2022-03-01 15:45:55,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 424 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=398, Invalid=1242, Unknown=0, NotChecked=0, Total=1640 [2022-03-01 15:45:55,984 INFO L933 BasicCegarLoop]: 295 mSDtfsCounter, 1744 mSDsluCounter, 3455 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1744 SdHoareTripleChecker+Valid, 3569 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:45:55,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1744 Valid, 3569 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:45:56,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97519 states. [2022-03-01 15:45:58,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97519 to 83098. [2022-03-01 15:45:59,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83098 states, 83097 states have (on average 4.537805215591417) internal successors, (377078), 83097 states have internal predecessors, (377078), 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) [2022-03-01 15:45:59,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83098 states to 83098 states and 377078 transitions. [2022-03-01 15:45:59,787 INFO L78 Accepts]: Start accepts. Automaton has 83098 states and 377078 transitions. Word has length 221 [2022-03-01 15:45:59,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:45:59,787 INFO L470 AbstractCegarLoop]: Abstraction has 83098 states and 377078 transitions. [2022-03-01 15:45:59,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 18.482758620689655) internal successors, (536), 29 states have internal predecessors, (536), 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) [2022-03-01 15:45:59,788 INFO L276 IsEmpty]: Start isEmpty. Operand 83098 states and 377078 transitions. [2022-03-01 15:45:59,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-01 15:45:59,970 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:45:59,971 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-03-01 15:45:59,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-01 15:46:00,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 15:46:00,171 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 15:46:00,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:46:00,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1645767732, now seen corresponding path program 2 times [2022-03-01 15:46:00,172 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:46:00,172 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044588696] [2022-03-01 15:46:00,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:46:00,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:46:00,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:46:00,218 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-01 15:46:00,218 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:46:00,218 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044588696] [2022-03-01 15:46:00,218 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044588696] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 15:46:00,218 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61986064] [2022-03-01 15:46:00,218 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-01 15:46:00,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 15:46:00,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 15:46:00,219 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) [2022-03-01 15:46:00,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-01 15:46:00,354 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-01 15:46:00,354 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 15:46:00,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 2 conjunts are in the unsatisfiable core [2022-03-01 15:46:00,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 15:46:00,591 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-01 15:46:00,591 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-01 15:46:00,591 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [61986064] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:46:00,591 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-01 15:46:00,592 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-03-01 15:46:00,592 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445226929] [2022-03-01 15:46:00,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:46:00,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-01 15:46:00,592 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:46:00,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-01 15:46:00,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-01 15:46:00,593 INFO L87 Difference]: Start difference. First operand 83098 states and 377078 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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) [2022-03-01 15:46:01,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:46:01,563 INFO L93 Difference]: Finished difference Result 95433 states and 419468 transitions. [2022-03-01 15:46:01,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 15:46:01,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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 223 [2022-03-01 15:46:01,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:46:02,331 INFO L225 Difference]: With dead ends: 95433 [2022-03-01 15:46:02,332 INFO L226 Difference]: Without dead ends: 95433 [2022-03-01 15:46:02,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-01 15:46:02,332 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 55 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 15:46:02,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 477 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 15:46:02,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95433 states. [2022-03-01 15:46:04,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95433 to 83098. [2022-03-01 15:46:04,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83098 states, 83097 states have (on average 4.448632321263102) internal successors, (369668), 83097 states have internal predecessors, (369668), 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) [2022-03-01 15:46:05,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83098 states to 83098 states and 369668 transitions. [2022-03-01 15:46:05,374 INFO L78 Accepts]: Start accepts. Automaton has 83098 states and 369668 transitions. Word has length 223 [2022-03-01 15:46:05,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:46:05,374 INFO L470 AbstractCegarLoop]: Abstraction has 83098 states and 369668 transitions. [2022-03-01 15:46:05,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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) [2022-03-01 15:46:05,375 INFO L276 IsEmpty]: Start isEmpty. Operand 83098 states and 369668 transitions. [2022-03-01 15:46:05,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-03-01 15:46:05,588 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:46:05,588 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2022-03-01 15:46:05,607 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-01 15:46:05,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-03-01 15:46:05,789 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 15:46:05,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:46:05,790 INFO L85 PathProgramCache]: Analyzing trace with hash 505595805, now seen corresponding path program 1 times [2022-03-01 15:46:05,790 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:46:05,790 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049968349] [2022-03-01 15:46:05,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:46:05,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:46:05,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:46:05,914 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-01 15:46:05,915 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:46:05,915 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049968349] [2022-03-01 15:46:05,915 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049968349] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 15:46:05,915 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021826518] [2022-03-01 15:46:05,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:46:05,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 15:46:05,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 15:46:05,920 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) [2022-03-01 15:46:05,921 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-01 15:46:06,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:46:06,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-01 15:46:06,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 15:46:06,493 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-01 15:46:06,493 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 15:46:06,901 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-01 15:46:06,901 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021826518] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 15:46:06,901 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 15:46:06,901 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-03-01 15:46:06,902 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832267467] [2022-03-01 15:46:06,902 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 15:46:06,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-01 15:46:06,902 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:46:06,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-01 15:46:06,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2022-03-01 15:46:06,903 INFO L87 Difference]: Start difference. First operand 83098 states and 369668 transitions. Second operand has 19 states, 19 states have (on average 16.473684210526315) internal successors, (313), 19 states have internal predecessors, (313), 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) [2022-03-01 15:46:07,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:46:07,885 INFO L93 Difference]: Finished difference Result 84138 states and 372704 transitions. [2022-03-01 15:46:07,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-01 15:46:07,885 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 16.473684210526315) internal successors, (313), 19 states have internal predecessors, (313), 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 228 [2022-03-01 15:46:07,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:46:08,542 INFO L225 Difference]: With dead ends: 84138 [2022-03-01 15:46:08,542 INFO L226 Difference]: Without dead ends: 80507 [2022-03-01 15:46:08,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 473 GetRequests, 446 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=200, Invalid=612, Unknown=0, NotChecked=0, Total=812 [2022-03-01 15:46:08,543 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 908 mSDsluCounter, 1926 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 908 SdHoareTripleChecker+Valid, 2057 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 15:46:08,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [908 Valid, 2057 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 15:46:08,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80507 states. [2022-03-01 15:46:10,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80507 to 80502. [2022-03-01 15:46:10,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80502 states, 80501 states have (on average 4.477832573508404) internal successors, (360470), 80501 states have internal predecessors, (360470), 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) [2022-03-01 15:46:11,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80502 states to 80502 states and 360470 transitions. [2022-03-01 15:46:11,189 INFO L78 Accepts]: Start accepts. Automaton has 80502 states and 360470 transitions. Word has length 228 [2022-03-01 15:46:11,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:46:11,189 INFO L470 AbstractCegarLoop]: Abstraction has 80502 states and 360470 transitions. [2022-03-01 15:46:11,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 16.473684210526315) internal successors, (313), 19 states have internal predecessors, (313), 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) [2022-03-01 15:46:11,189 INFO L276 IsEmpty]: Start isEmpty. Operand 80502 states and 360470 transitions. [2022-03-01 15:46:11,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-03-01 15:46:11,731 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:46:11,731 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2022-03-01 15:46:11,747 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-01 15:46:11,948 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,SelfDestructingSolverStorable16 [2022-03-01 15:46:11,948 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 15:46:11,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:46:11,948 INFO L85 PathProgramCache]: Analyzing trace with hash 809308305, now seen corresponding path program 2 times [2022-03-01 15:46:11,948 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:46:11,949 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085678903] [2022-03-01 15:46:11,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:46:11,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:46:11,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:46:12,030 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-03-01 15:46:12,030 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:46:12,030 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085678903] [2022-03-01 15:46:12,030 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085678903] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 15:46:12,030 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593498628] [2022-03-01 15:46:12,030 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-01 15:46:12,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 15:46:12,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 15:46:12,032 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) [2022-03-01 15:46:12,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-01 15:46:12,157 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-01 15:46:12,157 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 15:46:12,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-01 15:46:12,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 15:46:12,488 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-03-01 15:46:12,488 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 15:46:13,122 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-03-01 15:46:13,123 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [593498628] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 15:46:13,123 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 15:46:13,123 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 5] total 7 [2022-03-01 15:46:13,123 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716487946] [2022-03-01 15:46:13,123 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 15:46:13,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-01 15:46:13,124 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:46:13,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-01 15:46:13,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-01 15:46:13,124 INFO L87 Difference]: Start difference. First operand 80502 states and 360470 transitions. Second operand has 7 states, 7 states have (on average 53.57142857142857) internal successors, (375), 7 states have internal predecessors, (375), 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) [2022-03-01 15:46:15,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:46:15,628 INFO L93 Difference]: Finished difference Result 233873 states and 1046112 transitions. [2022-03-01 15:46:15,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-01 15:46:15,628 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 53.57142857142857) internal successors, (375), 7 states have internal predecessors, (375), 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 228 [2022-03-01 15:46:15,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:46:17,410 INFO L225 Difference]: With dead ends: 233873 [2022-03-01 15:46:17,411 INFO L226 Difference]: Without dead ends: 231953 [2022-03-01 15:46:17,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 454 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-03-01 15:46:17,411 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 433 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:46:17,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [433 Valid, 661 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:46:18,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231953 states. [2022-03-01 15:46:25,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231953 to 207162. [2022-03-01 15:46:25,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207162 states, 207161 states have (on average 4.538194930512983) internal successors, (940137), 207161 states have internal predecessors, (940137), 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) [2022-03-01 15:46:27,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207162 states to 207162 states and 940137 transitions. [2022-03-01 15:46:27,354 INFO L78 Accepts]: Start accepts. Automaton has 207162 states and 940137 transitions. Word has length 228 [2022-03-01 15:46:27,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:46:27,354 INFO L470 AbstractCegarLoop]: Abstraction has 207162 states and 940137 transitions. [2022-03-01 15:46:27,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 53.57142857142857) internal successors, (375), 7 states have internal predecessors, (375), 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) [2022-03-01 15:46:27,354 INFO L276 IsEmpty]: Start isEmpty. Operand 207162 states and 940137 transitions. [2022-03-01 15:46:27,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-03-01 15:46:27,868 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:46:27,869 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2022-03-01 15:46:27,885 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-01 15:46:28,070 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,SelfDestructingSolverStorable17 [2022-03-01 15:46:28,071 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 15:46:28,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:46:28,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1631137604, now seen corresponding path program 3 times [2022-03-01 15:46:28,072 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:46:28,072 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444353600] [2022-03-01 15:46:28,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:46:28,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:46:28,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:46:28,392 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-03-01 15:46:28,392 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:46:28,392 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444353600] [2022-03-01 15:46:28,393 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444353600] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:46:28,393 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:46:28,393 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-01 15:46:28,393 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974850324] [2022-03-01 15:46:28,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:46:28,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-01 15:46:28,394 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:46:28,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-01 15:46:28,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 15:46:28,394 INFO L87 Difference]: Start difference. First operand 207162 states and 940137 transitions. Second operand has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 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) [2022-03-01 15:46:30,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:46:30,541 INFO L93 Difference]: Finished difference Result 197654 states and 843805 transitions. [2022-03-01 15:46:30,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 15:46:30,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 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 232 [2022-03-01 15:46:30,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:46:31,987 INFO L225 Difference]: With dead ends: 197654 [2022-03-01 15:46:31,987 INFO L226 Difference]: Without dead ends: 194280 [2022-03-01 15:46:31,987 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 [2022-03-01 15:46:31,988 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 54 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 15:46:31,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 457 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 15:46:32,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194280 states. [2022-03-01 15:46:36,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194280 to 150196. [2022-03-01 15:46:37,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150196 states, 150195 states have (on average 4.303079330204068) internal successors, (646301), 150195 states have internal predecessors, (646301), 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) [2022-03-01 15:46:38,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150196 states to 150196 states and 646301 transitions. [2022-03-01 15:46:38,242 INFO L78 Accepts]: Start accepts. Automaton has 150196 states and 646301 transitions. Word has length 232 [2022-03-01 15:46:38,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:46:38,243 INFO L470 AbstractCegarLoop]: Abstraction has 150196 states and 646301 transitions. [2022-03-01 15:46:38,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 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) [2022-03-01 15:46:38,243 INFO L276 IsEmpty]: Start isEmpty. Operand 150196 states and 646301 transitions. [2022-03-01 15:46:38,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-03-01 15:46:38,453 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:46:38,454 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2022-03-01 15:46:38,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-01 15:46:38,454 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 15:46:38,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:46:38,454 INFO L85 PathProgramCache]: Analyzing trace with hash -918810044, now seen corresponding path program 2 times [2022-03-01 15:46:38,454 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:46:38,454 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457916495] [2022-03-01 15:46:38,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:46:38,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:46:38,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:46:38,538 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-03-01 15:46:38,538 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:46:38,538 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457916495] [2022-03-01 15:46:38,538 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457916495] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 15:46:38,538 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162867081] [2022-03-01 15:46:38,538 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-01 15:46:38,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 15:46:38,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 15:46:38,543 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) [2022-03-01 15:46:38,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-01 15:46:38,675 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-01 15:46:38,675 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 15:46:38,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 559 conjuncts, 14 conjunts are in the unsatisfiable core [2022-03-01 15:46:38,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 15:46:39,449 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-03-01 15:46:39,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 15:46:40,143 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-03-01 15:46:40,143 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162867081] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 15:46:40,143 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 15:46:40,143 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 11, 11] total 22 [2022-03-01 15:46:40,144 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606085891] [2022-03-01 15:46:40,144 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 15:46:40,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-03-01 15:46:40,144 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:46:40,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-03-01 15:46:40,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2022-03-01 15:46:40,145 INFO L87 Difference]: Start difference. First operand 150196 states and 646301 transitions. Second operand has 22 states, 22 states have (on average 18.681818181818183) internal successors, (411), 22 states have internal predecessors, (411), 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) [2022-03-01 15:46:42,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:46:42,419 INFO L93 Difference]: Finished difference Result 191909 states and 793725 transitions. [2022-03-01 15:46:42,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-01 15:46:42,420 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 18.681818181818183) internal successors, (411), 22 states have internal predecessors, (411), 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 235 [2022-03-01 15:46:42,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:46:44,441 INFO L225 Difference]: With dead ends: 191909 [2022-03-01 15:46:44,441 INFO L226 Difference]: Without dead ends: 170239 [2022-03-01 15:46:44,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 488 GetRequests, 454 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=341, Invalid=919, Unknown=0, NotChecked=0, Total=1260 [2022-03-01 15:46:44,443 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 1620 mSDsluCounter, 2374 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1620 SdHoareTripleChecker+Valid, 2482 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 15:46:44,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1620 Valid, 2482 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 15:46:44,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170239 states. [2022-03-01 15:46:49,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170239 to 124168. [2022-03-01 15:46:49,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124168 states, 124167 states have (on average 4.262670435784065) internal successors, (529283), 124167 states have internal predecessors, (529283), 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) [2022-03-01 15:46:50,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124168 states to 124168 states and 529283 transitions. [2022-03-01 15:46:50,308 INFO L78 Accepts]: Start accepts. Automaton has 124168 states and 529283 transitions. Word has length 235 [2022-03-01 15:46:50,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:46:50,309 INFO L470 AbstractCegarLoop]: Abstraction has 124168 states and 529283 transitions. [2022-03-01 15:46:50,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 18.681818181818183) internal successors, (411), 22 states have internal predecessors, (411), 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) [2022-03-01 15:46:50,309 INFO L276 IsEmpty]: Start isEmpty. Operand 124168 states and 529283 transitions. [2022-03-01 15:46:50,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-03-01 15:46:50,348 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:46:50,348 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2022-03-01 15:46:50,365 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-01 15:46:50,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 15:46:50,549 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 15:46:50,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:46:50,550 INFO L85 PathProgramCache]: Analyzing trace with hash -315004841, now seen corresponding path program 1 times [2022-03-01 15:46:50,550 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:46:50,550 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579001221] [2022-03-01 15:46:50,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:46:50,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:46:50,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:46:51,131 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-03-01 15:46:51,131 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:46:51,131 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579001221] [2022-03-01 15:46:51,131 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579001221] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 15:46:51,131 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [326023680] [2022-03-01 15:46:51,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:46:51,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 15:46:51,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 15:46:51,136 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) [2022-03-01 15:46:51,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-01 15:46:51,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:46:51,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 33 conjunts are in the unsatisfiable core [2022-03-01 15:46:51,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 15:46:52,516 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-03-01 15:46:52,516 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 20 [2022-03-01 15:46:52,570 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-03-01 15:46:52,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 15:46:52,655 INFO L353 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2022-03-01 15:46:52,656 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 19 treesize of output 11 [2022-03-01 15:46:54,806 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-03-01 15:46:54,807 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [326023680] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 15:46:54,807 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 15:46:54,807 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 17, 17] total 46 [2022-03-01 15:46:54,807 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986762595] [2022-03-01 15:46:54,807 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 15:46:54,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-03-01 15:46:54,808 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:46:54,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-03-01 15:46:54,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=1814, Unknown=0, NotChecked=0, Total=2070 [2022-03-01 15:46:54,809 INFO L87 Difference]: Start difference. First operand 124168 states and 529283 transitions. Second operand has 46 states, 46 states have (on average 12.869565217391305) internal successors, (592), 46 states have internal predecessors, (592), 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) [2022-03-01 15:47:01,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:47:01,640 INFO L93 Difference]: Finished difference Result 351219 states and 1467567 transitions. [2022-03-01 15:47:01,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-01 15:47:01,640 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 12.869565217391305) internal successors, (592), 46 states have internal predecessors, (592), 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 237 [2022-03-01 15:47:01,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:47:04,333 INFO L225 Difference]: With dead ends: 351219 [2022-03-01 15:47:04,334 INFO L226 Difference]: Without dead ends: 337662 [2022-03-01 15:47:04,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 443 SyntacticMatches, 8 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2495 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1357, Invalid=8149, Unknown=0, NotChecked=0, Total=9506 [2022-03-01 15:47:04,337 INFO L933 BasicCegarLoop]: 349 mSDtfsCounter, 3309 mSDsluCounter, 8051 mSDsCounter, 0 mSdLazyCounter, 1962 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3309 SdHoareTripleChecker+Valid, 7900 SdHoareTripleChecker+Invalid, 2107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 1962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 39 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-01 15:47:04,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3309 Valid, 7900 Invalid, 2107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 1962 Invalid, 0 Unknown, 39 Unchecked, 1.0s Time] [2022-03-01 15:47:05,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337662 states. [2022-03-01 15:47:14,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337662 to 202420. [2022-03-01 15:47:14,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202420 states, 202419 states have (on average 4.321254427697005) internal successors, (874704), 202419 states have internal predecessors, (874704), 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) [2022-03-01 15:47:16,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202420 states to 202420 states and 874704 transitions. [2022-03-01 15:47:16,687 INFO L78 Accepts]: Start accepts. Automaton has 202420 states and 874704 transitions. Word has length 237 [2022-03-01 15:47:16,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:47:16,687 INFO L470 AbstractCegarLoop]: Abstraction has 202420 states and 874704 transitions. [2022-03-01 15:47:16,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 12.869565217391305) internal successors, (592), 46 states have internal predecessors, (592), 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) [2022-03-01 15:47:16,688 INFO L276 IsEmpty]: Start isEmpty. Operand 202420 states and 874704 transitions. [2022-03-01 15:47:16,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2022-03-01 15:47:16,814 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:47:16,814 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 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, 1, 1, 1, 1] [2022-03-01 15:47:16,833 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-01 15:47:17,037 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,SelfDestructingSolverStorable20 [2022-03-01 15:47:17,037 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 15:47:17,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:47:17,038 INFO L85 PathProgramCache]: Analyzing trace with hash -2035522298, now seen corresponding path program 1 times [2022-03-01 15:47:17,038 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:47:17,038 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696065048] [2022-03-01 15:47:17,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:47:17,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:47:17,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:47:17,183 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-03-01 15:47:17,183 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:47:17,184 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696065048] [2022-03-01 15:47:17,184 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696065048] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:47:17,184 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:47:17,184 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-01 15:47:17,184 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41853440] [2022-03-01 15:47:17,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:47:17,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-01 15:47:17,185 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:47:17,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-01 15:47:17,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-01 15:47:17,185 INFO L87 Difference]: Start difference. First operand 202420 states and 874704 transitions. Second operand has 6 states, 6 states have (on average 38.166666666666664) internal successors, (229), 6 states have internal predecessors, (229), 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) [2022-03-01 15:47:21,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:47:21,120 INFO L93 Difference]: Finished difference Result 220830 states and 937536 transitions. [2022-03-01 15:47:21,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-01 15:47:21,121 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 38.166666666666664) internal successors, (229), 6 states have internal predecessors, (229), 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 249 [2022-03-01 15:47:21,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:47:23,956 INFO L225 Difference]: With dead ends: 220830 [2022-03-01 15:47:23,956 INFO L226 Difference]: Without dead ends: 211560 [2022-03-01 15:47:23,957 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 [2022-03-01 15:47:23,957 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 197 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:47:23,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 900 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:47:24,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211560 states. [2022-03-01 15:47:31,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211560 to 204316. [2022-03-01 15:47:31,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204316 states, 204315 states have (on average 4.310980593691114) internal successors, (880798), 204315 states have internal predecessors, (880798), 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) [2022-03-01 15:47:33,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204316 states to 204316 states and 880798 transitions. [2022-03-01 15:47:33,764 INFO L78 Accepts]: Start accepts. Automaton has 204316 states and 880798 transitions. Word has length 249 [2022-03-01 15:47:33,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:47:33,764 INFO L470 AbstractCegarLoop]: Abstraction has 204316 states and 880798 transitions. [2022-03-01 15:47:33,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.166666666666664) internal successors, (229), 6 states have internal predecessors, (229), 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) [2022-03-01 15:47:33,764 INFO L276 IsEmpty]: Start isEmpty. Operand 204316 states and 880798 transitions. [2022-03-01 15:47:34,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-03-01 15:47:34,160 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:47:34,161 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 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] [2022-03-01 15:47:34,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-01 15:47:34,162 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 15:47:34,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:47:34,162 INFO L85 PathProgramCache]: Analyzing trace with hash -979381848, now seen corresponding path program 2 times [2022-03-01 15:47:34,163 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:47:34,163 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251467118] [2022-03-01 15:47:34,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:47:34,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:47:34,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:47:34,251 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-03-01 15:47:34,251 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:47:34,252 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251467118] [2022-03-01 15:47:34,252 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251467118] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:47:34,252 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:47:34,252 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-01 15:47:34,252 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937972967] [2022-03-01 15:47:34,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:47:34,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-01 15:47:34,253 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:47:34,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-01 15:47:34,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 15:47:34,253 INFO L87 Difference]: Start difference. First operand 204316 states and 880798 transitions. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 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) [2022-03-01 15:47:37,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:47:37,534 INFO L93 Difference]: Finished difference Result 208802 states and 864973 transitions. [2022-03-01 15:47:37,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 15:47:37,534 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 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 253 [2022-03-01 15:47:37,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:47:39,953 INFO L225 Difference]: With dead ends: 208802 [2022-03-01 15:47:39,954 INFO L226 Difference]: Without dead ends: 202404 [2022-03-01 15:47:39,954 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 [2022-03-01 15:47:39,954 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 47 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:47:39,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 476 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:47:40,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202404 states. [2022-03-01 15:47:45,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202404 to 173601. [2022-03-01 15:47:46,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173601 states, 173600 states have (on average 4.170944700460829) internal successors, (724076), 173600 states have internal predecessors, (724076), 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) [2022-03-01 15:47:48,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173601 states to 173601 states and 724076 transitions. [2022-03-01 15:47:48,285 INFO L78 Accepts]: Start accepts. Automaton has 173601 states and 724076 transitions. Word has length 253 [2022-03-01 15:47:48,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:47:48,285 INFO L470 AbstractCegarLoop]: Abstraction has 173601 states and 724076 transitions. [2022-03-01 15:47:48,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 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) [2022-03-01 15:47:48,289 INFO L276 IsEmpty]: Start isEmpty. Operand 173601 states and 724076 transitions. [2022-03-01 15:47:48,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2022-03-01 15:47:48,368 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:47:48,368 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:47:48,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-01 15:47:48,368 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 15:47:48,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:47:48,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1896863273, now seen corresponding path program 1 times [2022-03-01 15:47:48,369 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:47:48,369 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150278629] [2022-03-01 15:47:48,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:47:48,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:47:48,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:47:48,540 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-03-01 15:47:48,540 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:47:48,540 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150278629] [2022-03-01 15:47:48,540 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150278629] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 15:47:48,540 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [870748358] [2022-03-01 15:47:48,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:47:48,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 15:47:48,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 15:47:48,542 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) [2022-03-01 15:47:48,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-01 15:47:48,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:47:48,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 13 conjunts are in the unsatisfiable core [2022-03-01 15:47:48,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 15:47:49,325 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-03-01 15:47:49,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 15:47:49,762 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-03-01 15:47:49,763 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [870748358] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 15:47:49,763 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 15:47:49,763 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-03-01 15:47:49,763 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160611379] [2022-03-01 15:47:49,763 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 15:47:49,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-01 15:47:49,764 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:47:49,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-01 15:47:49,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2022-03-01 15:47:49,765 INFO L87 Difference]: Start difference. First operand 173601 states and 724076 transitions. Second operand has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 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) [2022-03-01 15:47:53,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:47:53,224 INFO L93 Difference]: Finished difference Result 185727 states and 764388 transitions. [2022-03-01 15:47:53,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 15:47:53,224 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 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 256 [2022-03-01 15:47:53,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:47:54,834 INFO L225 Difference]: With dead ends: 185727 [2022-03-01 15:47:54,839 INFO L226 Difference]: Without dead ends: 173625 [2022-03-01 15:47:54,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 503 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=194, Invalid=562, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:47:54,840 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 1003 mSDsluCounter, 1924 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 2015 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 15:47:54,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1003 Valid, 2015 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 15:47:55,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173625 states. [2022-03-01 15:47:59,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173625 to 173615. [2022-03-01 15:48:00,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173615 states, 173614 states have (on average 4.170688999735044) internal successors, (724090), 173614 states have internal predecessors, (724090), 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) [2022-03-01 15:48:01,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173615 states to 173615 states and 724090 transitions. [2022-03-01 15:48:01,673 INFO L78 Accepts]: Start accepts. Automaton has 173615 states and 724090 transitions. Word has length 256 [2022-03-01 15:48:01,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:48:01,673 INFO L470 AbstractCegarLoop]: Abstraction has 173615 states and 724090 transitions. [2022-03-01 15:48:01,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.421052631578947) internal successors, (293), 19 states have internal predecessors, (293), 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) [2022-03-01 15:48:01,674 INFO L276 IsEmpty]: Start isEmpty. Operand 173615 states and 724090 transitions. [2022-03-01 15:48:01,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-01 15:48:01,730 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:48:01,731 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 2, 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, 1, 1, 1, 1] [2022-03-01 15:48:01,749 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-01 15:48:01,943 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,SelfDestructingSolverStorable23 [2022-03-01 15:48:01,944 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 15:48:01,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:48:01,944 INFO L85 PathProgramCache]: Analyzing trace with hash 971270054, now seen corresponding path program 2 times [2022-03-01 15:48:01,944 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:48:01,945 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588205725] [2022-03-01 15:48:01,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:48:01,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:48:02,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:48:02,486 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 3 proven. 28 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-01 15:48:02,486 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:48:02,486 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588205725] [2022-03-01 15:48:02,486 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588205725] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 15:48:02,486 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936107379] [2022-03-01 15:48:02,487 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-01 15:48:02,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 15:48:02,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 15:48:02,488 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) [2022-03-01 15:48:02,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-01 15:48:02,629 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-01 15:48:02,630 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 15:48:02,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 33 conjunts are in the unsatisfiable core [2022-03-01 15:48:02,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 15:48:03,442 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-03-01 15:48:03,442 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 15:48:03,685 INFO L353 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2022-03-01 15:48:03,685 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 19 treesize of output 11 [2022-03-01 15:48:04,843 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-03-01 15:48:04,843 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936107379] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 15:48:04,843 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 15:48:04,843 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 15, 15] total 44 [2022-03-01 15:48:04,844 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374596281] [2022-03-01 15:48:04,844 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 15:48:04,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-03-01 15:48:04,844 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:48:04,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-03-01 15:48:04,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=1662, Unknown=0, NotChecked=0, Total=1892 [2022-03-01 15:48:04,845 INFO L87 Difference]: Start difference. First operand 173615 states and 724090 transitions. Second operand has 44 states, 44 states have (on average 12.931818181818182) internal successors, (569), 44 states have internal predecessors, (569), 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) [2022-03-01 15:48:11,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:48:11,250 INFO L93 Difference]: Finished difference Result 349718 states and 1443370 transitions. [2022-03-01 15:48:11,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-01 15:48:11,251 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 12.931818181818182) internal successors, (569), 44 states have internal predecessors, (569), 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 263 [2022-03-01 15:48:11,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:48:13,929 INFO L225 Difference]: With dead ends: 349718 [2022-03-01 15:48:13,929 INFO L226 Difference]: Without dead ends: 336376 [2022-03-01 15:48:13,930 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 584 GetRequests, 505 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1406 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1226, Invalid=5254, Unknown=0, NotChecked=0, Total=6480 [2022-03-01 15:48:13,930 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 3372 mSDsluCounter, 5192 mSDsCounter, 0 mSdLazyCounter, 1480 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3372 SdHoareTripleChecker+Valid, 5216 SdHoareTripleChecker+Invalid, 1553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 15:48:13,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3372 Valid, 5216 Invalid, 1553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1480 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 15:48:14,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336376 states. [2022-03-01 15:48:22,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336376 to 178711. [2022-03-01 15:48:22,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178711 states, 178710 states have (on average 4.152946113815679) internal successors, (742173), 178710 states have internal predecessors, (742173), 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) [2022-03-01 15:48:23,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178711 states to 178711 states and 742173 transitions. [2022-03-01 15:48:23,530 INFO L78 Accepts]: Start accepts. Automaton has 178711 states and 742173 transitions. Word has length 263 [2022-03-01 15:48:23,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:48:23,531 INFO L470 AbstractCegarLoop]: Abstraction has 178711 states and 742173 transitions. [2022-03-01 15:48:23,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 12.931818181818182) internal successors, (569), 44 states have internal predecessors, (569), 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) [2022-03-01 15:48:23,531 INFO L276 IsEmpty]: Start isEmpty. Operand 178711 states and 742173 transitions. [2022-03-01 15:48:23,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-03-01 15:48:23,910 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:48:23,910 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-01 15:48:23,931 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-03-01 15:48:24,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-03-01 15:48:24,111 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 15:48:24,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:48:24,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1554056747, now seen corresponding path program 3 times [2022-03-01 15:48:24,111 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:48:24,111 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832263878] [2022-03-01 15:48:24,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:48:24,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:48:24,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:48:24,725 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 1 proven. 74 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-03-01 15:48:24,725 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:48:24,725 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832263878] [2022-03-01 15:48:24,725 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832263878] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 15:48:24,725 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [791651184] [2022-03-01 15:48:24,726 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-01 15:48:24,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 15:48:24,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 15:48:24,732 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) [2022-03-01 15:48:24,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-01 15:48:24,964 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-03-01 15:48:24,964 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 15:48:24,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 35 conjunts are in the unsatisfiable core [2022-03-01 15:48:24,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 15:48:25,874 INFO L353 Elim1Store]: treesize reduction 14, result has 17.6 percent of original size [2022-03-01 15:48:25,874 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 50 treesize of output 20 [2022-03-01 15:48:25,920 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 23 proven. 49 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-03-01 15:48:25,921 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 15:48:26,011 INFO L353 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2022-03-01 15:48:26,012 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 19 treesize of output 11 [2022-03-01 15:48:27,105 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-03-01 15:48:27,105 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [791651184] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 15:48:27,105 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 15:48:27,105 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 19, 19] total 55 [2022-03-01 15:48:27,105 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376630303] [2022-03-01 15:48:27,106 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 15:48:27,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-03-01 15:48:27,106 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:48:27,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-03-01 15:48:27,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=317, Invalid=2653, Unknown=0, NotChecked=0, Total=2970 [2022-03-01 15:48:27,107 INFO L87 Difference]: Start difference. First operand 178711 states and 742173 transitions. Second operand has 55 states, 55 states have (on average 10.527272727272727) internal successors, (579), 55 states have internal predecessors, (579), 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) [2022-03-01 15:48:44,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:48:44,644 INFO L93 Difference]: Finished difference Result 968557 states and 3934124 transitions. [2022-03-01 15:48:44,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-01 15:48:44,644 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 55 states have (on average 10.527272727272727) internal successors, (579), 55 states have internal predecessors, (579), 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 278 [2022-03-01 15:48:44,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:48:56,040 INFO L225 Difference]: With dead ends: 968557 [2022-03-01 15:48:56,040 INFO L226 Difference]: Without dead ends: 934776 [2022-03-01 15:48:56,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 659 GetRequests, 531 SyntacticMatches, 4 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4161 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=2253, Invalid=13497, Unknown=0, NotChecked=0, Total=15750 [2022-03-01 15:48:56,043 INFO L933 BasicCegarLoop]: 549 mSDtfsCounter, 4184 mSDsluCounter, 15734 mSDsCounter, 0 mSdLazyCounter, 3671 mSolverCounterSat, 284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4184 SdHoareTripleChecker+Valid, 15046 SdHoareTripleChecker+Invalid, 4375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 284 IncrementalHoareTripleChecker+Valid, 3671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 420 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-01 15:48:56,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4184 Valid, 15046 Invalid, 4375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [284 Valid, 3671 Invalid, 0 Unknown, 420 Unchecked, 2.0s Time] [2022-03-01 15:48:58,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934776 states. [2022-03-01 15:49:34,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934776 to 575871. [2022-03-01 15:49:37,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575871 states, 575870 states have (on average 4.214166391720354) internal successors, (2426812), 575870 states have internal predecessors, (2426812), 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)