/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-two-queue.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-01 16:16:25,321 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-01 16:16:25,323 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-01 16:16:25,370 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-01 16:16:25,370 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-01 16:16:25,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-01 16:16:25,374 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-01 16:16:25,375 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-01 16:16:25,376 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-01 16:16:25,377 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-01 16:16:25,377 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-01 16:16:25,378 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-01 16:16:25,378 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-01 16:16:25,379 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-01 16:16:25,379 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-01 16:16:25,380 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-01 16:16:25,381 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-01 16:16:25,381 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-01 16:16:25,382 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-01 16:16:25,383 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-01 16:16:25,384 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-01 16:16:25,388 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-01 16:16:25,389 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-01 16:16:25,389 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-01 16:16:25,391 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-01 16:16:25,396 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-01 16:16:25,397 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-01 16:16:25,397 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-01 16:16:25,402 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 16:16:25,431 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-01 16:16:25,431 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-01 16:16:25,431 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-01 16:16:25,431 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-01 16:16:25,432 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-01 16:16:25,432 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-01 16:16:25,432 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-01 16:16:25,432 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-01 16:16:25,433 INFO L138 SettingsManager]: * Use SBE=true [2022-03-01 16:16:25,433 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-01 16:16:25,433 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-01 16:16:25,433 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-01 16:16:25,433 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-01 16:16:25,433 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-01 16:16:25,433 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-01 16:16:25,433 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-01 16:16:25,433 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-01 16:16:25,433 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-01 16:16:25,434 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-01 16:16:25,434 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-01 16:16:25,434 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-01 16:16:25,434 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-01 16:16:25,434 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-01 16:16:25,434 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-01 16:16:25,434 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-01 16:16:25,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 16:16:25,434 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-01 16:16:25,435 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-01 16:16:25,435 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-01 16:16:25,435 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-01 16:16:25,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-01 16:16:25,435 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-01 16:16:25,435 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-01 16:16:25,435 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-01 16:16:25,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-01 16:16:25,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-01 16:16:25,649 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-01 16:16:25,649 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-01 16:16:25,650 INFO L275 PluginConnector]: CDTParser initialized [2022-03-01 16:16:25,650 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-two-queue.wvr.c [2022-03-01 16:16:25,692 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9167487b6/a97114e7d4344ce58217b5f107b69a57/FLAGb8634c455 [2022-03-01 16:16:26,045 INFO L306 CDTParser]: Found 1 translation units. [2022-03-01 16:16:26,046 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-two-queue.wvr.c [2022-03-01 16:16:26,050 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9167487b6/a97114e7d4344ce58217b5f107b69a57/FLAGb8634c455 [2022-03-01 16:16:26,059 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9167487b6/a97114e7d4344ce58217b5f107b69a57 [2022-03-01 16:16:26,061 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-01 16:16:26,061 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-01 16:16:26,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-01 16:16:26,063 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-01 16:16:26,065 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-01 16:16:26,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.03 04:16:26" (1/1) ... [2022-03-01 16:16:26,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33a2f09f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:16:26, skipping insertion in model container [2022-03-01 16:16:26,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.03 04:16:26" (1/1) ... [2022-03-01 16:16:26,081 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-01 16:16:26,097 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-01 16:16:26,216 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-two-queue.wvr.c[2987,3000] [2022-03-01 16:16:26,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-01 16:16:26,225 INFO L203 MainTranslator]: Completed pre-run [2022-03-01 16:16:26,238 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-two-queue.wvr.c[2987,3000] [2022-03-01 16:16:26,240 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-01 16:16:26,248 INFO L208 MainTranslator]: Completed translation [2022-03-01 16:16:26,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:16:26 WrapperNode [2022-03-01 16:16:26,249 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-01 16:16:26,250 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-01 16:16:26,250 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-01 16:16:26,250 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-01 16:16:26,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:16:26" (1/1) ... [2022-03-01 16:16:26,266 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:16:26" (1/1) ... [2022-03-01 16:16:26,296 INFO L137 Inliner]: procedures = 24, calls = 43, calls flagged for inlining = 13, calls inlined = 15, statements flattened = 200 [2022-03-01 16:16:26,296 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-01 16:16:26,296 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-01 16:16:26,297 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-01 16:16:26,297 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-01 16:16:26,302 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:16:26" (1/1) ... [2022-03-01 16:16:26,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:16:26" (1/1) ... [2022-03-01 16:16:26,304 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:16:26" (1/1) ... [2022-03-01 16:16:26,304 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:16:26" (1/1) ... [2022-03-01 16:16:26,308 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:16:26" (1/1) ... [2022-03-01 16:16:26,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:16:26" (1/1) ... [2022-03-01 16:16:26,312 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:16:26" (1/1) ... [2022-03-01 16:16:26,314 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-01 16:16:26,314 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-01 16:16:26,314 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-01 16:16:26,314 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-01 16:16:26,315 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:16:26" (1/1) ... [2022-03-01 16:16:26,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 16:16:26,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:16:26,345 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 16:16:26,353 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 16:16:26,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-01 16:16:26,370 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-01 16:16:26,370 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-01 16:16:26,371 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-01 16:16:26,371 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-01 16:16:26,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-01 16:16:26,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-01 16:16:26,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-01 16:16:26,371 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-01 16:16:26,371 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-01 16:16:26,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-01 16:16:26,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-01 16:16:26,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-01 16:16:26,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-01 16:16:26,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-01 16:16:26,372 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 16:16:26,434 INFO L234 CfgBuilder]: Building ICFG [2022-03-01 16:16:26,435 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-01 16:16:26,694 INFO L275 CfgBuilder]: Performing block encoding [2022-03-01 16:16:26,761 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-01 16:16:26,761 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-03-01 16:16:26,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 04:16:26 BoogieIcfgContainer [2022-03-01 16:16:26,763 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-01 16:16:26,764 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-01 16:16:26,764 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-01 16:16:26,766 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-01 16:16:26,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.03 04:16:26" (1/3) ... [2022-03-01 16:16:26,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46776e40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 04:16:26, skipping insertion in model container [2022-03-01 16:16:26,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:16:26" (2/3) ... [2022-03-01 16:16:26,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46776e40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 04:16:26, skipping insertion in model container [2022-03-01 16:16:26,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 04:16:26" (3/3) ... [2022-03-01 16:16:26,768 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-two-queue.wvr.c [2022-03-01 16:16:26,771 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-01 16:16:26,771 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-01 16:16:26,771 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-01 16:16:26,771 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-01 16:16:26,794 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,794 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,794 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,794 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,794 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,795 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,795 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,795 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,795 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,795 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,795 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,795 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,796 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,796 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,796 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,796 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,796 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,796 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,797 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,797 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,797 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,797 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,797 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,797 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,797 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,798 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,798 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,798 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,798 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,798 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,798 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,798 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,799 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,799 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,799 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,799 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,799 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,799 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,799 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,800 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,800 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,800 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,800 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,800 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,800 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,800 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,800 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,801 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,801 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,801 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,801 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,801 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,803 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,803 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,803 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,803 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,803 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,804 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,804 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,804 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,804 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,804 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,804 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,805 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,805 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,805 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,805 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,805 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,805 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:16:26,805 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 16:16:26,808 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-01 16:16:26,844 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-01 16:16:26,850 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 16:16:26,850 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-01 16:16:26,863 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 172 places, 178 transitions, 372 flow [2022-03-01 16:16:26,912 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 531 states, 530 states have (on average 2.3943396226415095) internal successors, (1269), 530 states have internal predecessors, (1269), 0 states have call successors, (0), 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 16:16:26,915 INFO L276 IsEmpty]: Start isEmpty. Operand has 531 states, 530 states have (on average 2.3943396226415095) internal successors, (1269), 530 states have internal predecessors, (1269), 0 states have call successors, (0), 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 16:16:26,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-03-01 16:16:26,927 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:16:26,928 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] [2022-03-01 16:16:26,928 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 16:16:26,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:16:26,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1706445545, now seen corresponding path program 1 times [2022-03-01 16:16:26,936 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:16:26,937 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170646986] [2022-03-01 16:16:26,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:16:26,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:16:27,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:16:27,103 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 16:16:27,105 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:16:27,109 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170646986] [2022-03-01 16:16:27,110 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170646986] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:16:27,110 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:16:27,110 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-01 16:16:27,111 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667766745] [2022-03-01 16:16:27,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:16:27,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-01 16:16:27,115 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:16:27,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-01 16:16:27,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-01 16:16:27,136 INFO L87 Difference]: Start difference. First operand has 531 states, 530 states have (on average 2.3943396226415095) internal successors, (1269), 530 states have internal predecessors, (1269), 0 states have call successors, (0), 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 63.5) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 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 16:16:27,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:16:27,187 INFO L93 Difference]: Finished difference Result 531 states and 1181 transitions. [2022-03-01 16:16:27,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 16:16:27,189 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2022-03-01 16:16:27,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:16:27,198 INFO L225 Difference]: With dead ends: 531 [2022-03-01 16:16:27,199 INFO L226 Difference]: Without dead ends: 526 [2022-03-01 16:16:27,200 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 16:16:27,202 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 16:16:27,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 150 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 16:16:27,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2022-03-01 16:16:27,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2022-03-01 16:16:27,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 525 states have (on average 2.24) internal successors, (1176), 525 states have internal predecessors, (1176), 0 states have call successors, (0), 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 16:16:27,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1176 transitions. [2022-03-01 16:16:27,248 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1176 transitions. Word has length 127 [2022-03-01 16:16:27,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:16:27,249 INFO L470 AbstractCegarLoop]: Abstraction has 526 states and 1176 transitions. [2022-03-01 16:16:27,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 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 16:16:27,249 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1176 transitions. [2022-03-01 16:16:27,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-03-01 16:16:27,254 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:16:27,254 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] [2022-03-01 16:16:27,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-01 16:16:27,254 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 16:16:27,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:16:27,255 INFO L85 PathProgramCache]: Analyzing trace with hash -173927127, now seen corresponding path program 1 times [2022-03-01 16:16:27,255 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:16:27,255 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793960191] [2022-03-01 16:16:27,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:16:27,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:16:27,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:16:27,525 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 16:16:27,525 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:16:27,525 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793960191] [2022-03-01 16:16:27,526 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793960191] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:16:27,526 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:16:27,526 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-01 16:16:27,527 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721450276] [2022-03-01 16:16:27,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:16:27,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-01 16:16:27,528 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:16:27,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-01 16:16:27,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-01 16:16:27,533 INFO L87 Difference]: Start difference. First operand 526 states and 1176 transitions. Second operand has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 0 states have call successors, (0), 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 16:16:27,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:16:27,667 INFO L93 Difference]: Finished difference Result 982 states and 2343 transitions. [2022-03-01 16:16:27,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-01 16:16:27,668 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2022-03-01 16:16:27,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:16:27,677 INFO L225 Difference]: With dead ends: 982 [2022-03-01 16:16:27,677 INFO L226 Difference]: Without dead ends: 931 [2022-03-01 16:16:27,677 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-03-01 16:16:27,678 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 179 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:16:27,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 480 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 16:16:27,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2022-03-01 16:16:27,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 581. [2022-03-01 16:16:27,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 580 states have (on average 2.253448275862069) internal successors, (1307), 580 states have internal predecessors, (1307), 0 states have call successors, (0), 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 16:16:27,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 1307 transitions. [2022-03-01 16:16:27,712 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 1307 transitions. Word has length 127 [2022-03-01 16:16:27,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:16:27,713 INFO L470 AbstractCegarLoop]: Abstraction has 581 states and 1307 transitions. [2022-03-01 16:16:27,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 0 states have call successors, (0), 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 16:16:27,713 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 1307 transitions. [2022-03-01 16:16:27,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-01 16:16:27,716 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:16:27,716 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] [2022-03-01 16:16:27,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-01 16:16:27,717 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 16:16:27,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:16:27,717 INFO L85 PathProgramCache]: Analyzing trace with hash -2114885365, now seen corresponding path program 1 times [2022-03-01 16:16:27,717 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:16:27,717 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604184273] [2022-03-01 16:16:27,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:16:27,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:16:27,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:16:27,830 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 16:16:27,830 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:16:27,830 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604184273] [2022-03-01 16:16:27,830 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604184273] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:16:27,830 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:16:27,830 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-01 16:16:27,831 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146034913] [2022-03-01 16:16:27,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:16:27,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-01 16:16:27,831 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:16:27,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-01 16:16:27,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-01 16:16:27,832 INFO L87 Difference]: Start difference. First operand 581 states and 1307 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 0 states have call successors, (0), 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 16:16:27,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:16:27,884 INFO L93 Difference]: Finished difference Result 931 states and 2193 transitions. [2022-03-01 16:16:27,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-01 16:16:27,885 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2022-03-01 16:16:27,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:16:27,888 INFO L225 Difference]: With dead ends: 931 [2022-03-01 16:16:27,888 INFO L226 Difference]: Without dead ends: 886 [2022-03-01 16:16:27,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-01 16:16:27,889 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 182 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 16:16:27,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 350 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 16:16:27,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2022-03-01 16:16:27,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 536. [2022-03-01 16:16:27,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 535 states have (on average 2.2411214953271026) internal successors, (1199), 535 states have internal predecessors, (1199), 0 states have call successors, (0), 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 16:16:27,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 1199 transitions. [2022-03-01 16:16:27,903 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 1199 transitions. Word has length 133 [2022-03-01 16:16:27,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:16:27,903 INFO L470 AbstractCegarLoop]: Abstraction has 536 states and 1199 transitions. [2022-03-01 16:16:27,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 0 states have call successors, (0), 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 16:16:27,903 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 1199 transitions. [2022-03-01 16:16:27,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-01 16:16:27,906 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:16:27,906 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] [2022-03-01 16:16:27,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-01 16:16:27,906 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 16:16:27,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:16:27,907 INFO L85 PathProgramCache]: Analyzing trace with hash 400951589, now seen corresponding path program 1 times [2022-03-01 16:16:27,907 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:16:27,907 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990627371] [2022-03-01 16:16:27,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:16:27,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:16:27,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:16:27,996 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 16:16:27,996 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:16:27,996 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990627371] [2022-03-01 16:16:27,996 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990627371] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:16:27,996 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:16:27,997 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-01 16:16:27,997 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669648918] [2022-03-01 16:16:27,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:16:27,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-01 16:16:27,998 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:16:27,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-01 16:16:27,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-01 16:16:27,999 INFO L87 Difference]: Start difference. First operand 536 states and 1199 transitions. Second operand has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 0 states have call successors, (0), 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 16:16:28,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:16:28,063 INFO L93 Difference]: Finished difference Result 949 states and 2283 transitions. [2022-03-01 16:16:28,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-01 16:16:28,064 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2022-03-01 16:16:28,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:16:28,068 INFO L225 Difference]: With dead ends: 949 [2022-03-01 16:16:28,068 INFO L226 Difference]: Without dead ends: 949 [2022-03-01 16:16:28,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-01 16:16:28,075 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 192 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:16:28,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [192 Valid, 358 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 16:16:28,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2022-03-01 16:16:28,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 583. [2022-03-01 16:16:28,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 582 states have (on average 2.2783505154639174) internal successors, (1326), 582 states have internal predecessors, (1326), 0 states have call successors, (0), 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 16:16:28,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 1326 transitions. [2022-03-01 16:16:28,090 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 1326 transitions. Word has length 133 [2022-03-01 16:16:28,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:16:28,091 INFO L470 AbstractCegarLoop]: Abstraction has 583 states and 1326 transitions. [2022-03-01 16:16:28,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 0 states have call successors, (0), 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 16:16:28,091 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 1326 transitions. [2022-03-01 16:16:28,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-01 16:16:28,095 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:16:28,095 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] [2022-03-01 16:16:28,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-01 16:16:28,095 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 16:16:28,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:16:28,097 INFO L85 PathProgramCache]: Analyzing trace with hash 282045507, now seen corresponding path program 2 times [2022-03-01 16:16:28,097 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:16:28,097 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714650369] [2022-03-01 16:16:28,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:16:28,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:16:28,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:16:28,181 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 16:16:28,181 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:16:28,181 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714650369] [2022-03-01 16:16:28,182 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714650369] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:16:28,182 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:16:28,182 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-01 16:16:28,182 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156201666] [2022-03-01 16:16:28,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:16:28,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-01 16:16:28,183 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:16:28,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-01 16:16:28,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-01 16:16:28,183 INFO L87 Difference]: Start difference. First operand 583 states and 1326 transitions. Second operand has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 0 states have call successors, (0), 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 16:16:28,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:16:28,228 INFO L93 Difference]: Finished difference Result 727 states and 1713 transitions. [2022-03-01 16:16:28,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-01 16:16:28,228 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2022-03-01 16:16:28,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:16:28,232 INFO L225 Difference]: With dead ends: 727 [2022-03-01 16:16:28,232 INFO L226 Difference]: Without dead ends: 727 [2022-03-01 16:16:28,232 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-01 16:16:28,233 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 150 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 16:16:28,233 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 467 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 16:16:28,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2022-03-01 16:16:28,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 611. [2022-03-01 16:16:28,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 610 states have (on average 2.3) internal successors, (1403), 610 states have internal predecessors, (1403), 0 states have call successors, (0), 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 16:16:28,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 1403 transitions. [2022-03-01 16:16:28,245 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 1403 transitions. Word has length 133 [2022-03-01 16:16:28,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:16:28,246 INFO L470 AbstractCegarLoop]: Abstraction has 611 states and 1403 transitions. [2022-03-01 16:16:28,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 0 states have call successors, (0), 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 16:16:28,246 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 1403 transitions. [2022-03-01 16:16:28,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-03-01 16:16:28,248 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:16:28,248 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] [2022-03-01 16:16:28,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-01 16:16:28,249 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 16:16:28,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:16:28,249 INFO L85 PathProgramCache]: Analyzing trace with hash 951456391, now seen corresponding path program 1 times [2022-03-01 16:16:28,249 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:16:28,249 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632947678] [2022-03-01 16:16:28,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:16:28,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:16:28,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:16:28,333 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 16:16:28,334 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:16:28,334 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632947678] [2022-03-01 16:16:28,334 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632947678] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:16:28,334 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:16:28,334 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-01 16:16:28,334 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078832804] [2022-03-01 16:16:28,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:16:28,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-01 16:16:28,334 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:16:28,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-01 16:16:28,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-01 16:16:28,335 INFO L87 Difference]: Start difference. First operand 611 states and 1403 transitions. Second operand has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:16:28,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:16:28,397 INFO L93 Difference]: Finished difference Result 701 states and 1529 transitions. [2022-03-01 16:16:28,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-01 16:16:28,397 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2022-03-01 16:16:28,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:16:28,399 INFO L225 Difference]: With dead ends: 701 [2022-03-01 16:16:28,399 INFO L226 Difference]: Without dead ends: 617 [2022-03-01 16:16:28,399 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 16:16:28,400 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 110 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 16:16:28,401 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 490 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 16:16:28,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2022-03-01 16:16:28,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 612. [2022-03-01 16:16:28,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 611 states have (on average 2.297872340425532) internal successors, (1404), 611 states have internal predecessors, (1404), 0 states have call successors, (0), 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 16:16:28,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 1404 transitions. [2022-03-01 16:16:28,413 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 1404 transitions. Word has length 139 [2022-03-01 16:16:28,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:16:28,413 INFO L470 AbstractCegarLoop]: Abstraction has 612 states and 1404 transitions. [2022-03-01 16:16:28,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:16:28,413 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 1404 transitions. [2022-03-01 16:16:28,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-01 16:16:28,438 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:16:28,438 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] [2022-03-01 16:16:28,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-01 16:16:28,438 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 16:16:28,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:16:28,439 INFO L85 PathProgramCache]: Analyzing trace with hash 860679619, now seen corresponding path program 1 times [2022-03-01 16:16:28,439 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:16:28,439 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981849429] [2022-03-01 16:16:28,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:16:28,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:16:28,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:16:28,506 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:16:28,507 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:16:28,507 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981849429] [2022-03-01 16:16:28,507 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981849429] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:16:28,507 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:16:28,507 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-01 16:16:28,507 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771411004] [2022-03-01 16:16:28,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:16:28,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-01 16:16:28,507 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:16:28,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-01 16:16:28,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-01 16:16:28,508 INFO L87 Difference]: Start difference. First operand 612 states and 1404 transitions. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 states have internal predecessors, (146), 0 states have call successors, (0), 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 16:16:28,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:16:28,570 INFO L93 Difference]: Finished difference Result 663 states and 1484 transitions. [2022-03-01 16:16:28,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-01 16:16:28,571 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 states have internal predecessors, (146), 0 states have call successors, (0), 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 146 [2022-03-01 16:16:28,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:16:28,573 INFO L225 Difference]: With dead ends: 663 [2022-03-01 16:16:28,573 INFO L226 Difference]: Without dead ends: 618 [2022-03-01 16:16:28,573 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 16:16:28,574 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 211 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 16:16:28,574 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 519 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 16:16:28,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2022-03-01 16:16:28,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 613. [2022-03-01 16:16:28,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 612 states have (on average 2.295751633986928) internal successors, (1405), 612 states have internal predecessors, (1405), 0 states have call successors, (0), 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 16:16:28,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 1405 transitions. [2022-03-01 16:16:28,585 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 1405 transitions. Word has length 146 [2022-03-01 16:16:28,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:16:28,585 INFO L470 AbstractCegarLoop]: Abstraction has 613 states and 1405 transitions. [2022-03-01 16:16:28,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 states have internal predecessors, (146), 0 states have call successors, (0), 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 16:16:28,585 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 1405 transitions. [2022-03-01 16:16:28,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-01 16:16:28,587 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:16:28,587 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] [2022-03-01 16:16:28,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-01 16:16:28,587 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 16:16:28,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:16:28,588 INFO L85 PathProgramCache]: Analyzing trace with hash -72994876, now seen corresponding path program 1 times [2022-03-01 16:16:28,588 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:16:28,588 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684226389] [2022-03-01 16:16:28,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:16:28,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:16:28,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:16:28,656 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-01 16:16:28,657 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:16:28,657 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684226389] [2022-03-01 16:16:28,657 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684226389] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:16:28,657 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:16:28,657 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-01 16:16:28,657 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975844399] [2022-03-01 16:16:28,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:16:28,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-01 16:16:28,657 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:16:28,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-01 16:16:28,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 16:16:28,658 INFO L87 Difference]: Start difference. First operand 613 states and 1405 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:16:28,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:16:28,671 INFO L93 Difference]: Finished difference Result 552 states and 1257 transitions. [2022-03-01 16:16:28,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 16:16:28,671 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-01 16:16:28,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:16:28,673 INFO L225 Difference]: With dead ends: 552 [2022-03-01 16:16:28,673 INFO L226 Difference]: Without dead ends: 552 [2022-03-01 16:16:28,673 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 16:16:28,673 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 10 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 16:16:28,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 206 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 16:16:28,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2022-03-01 16:16:28,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2022-03-01 16:16:28,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 551 states have (on average 2.2813067150635207) internal successors, (1257), 551 states have internal predecessors, (1257), 0 states have call successors, (0), 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 16:16:28,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 1257 transitions. [2022-03-01 16:16:28,682 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 1257 transitions. Word has length 153 [2022-03-01 16:16:28,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:16:28,683 INFO L470 AbstractCegarLoop]: Abstraction has 552 states and 1257 transitions. [2022-03-01 16:16:28,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:16:28,683 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 1257 transitions. [2022-03-01 16:16:28,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-01 16:16:28,684 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:16:28,684 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] [2022-03-01 16:16:28,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-01 16:16:28,684 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 16:16:28,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:16:28,685 INFO L85 PathProgramCache]: Analyzing trace with hash 2123275802, now seen corresponding path program 2 times [2022-03-01 16:16:28,685 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:16:28,685 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198646511] [2022-03-01 16:16:28,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:16:28,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:16:28,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:16:31,592 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:16:31,593 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:16:31,593 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198646511] [2022-03-01 16:16:31,593 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198646511] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:16:31,593 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270513822] [2022-03-01 16:16:31,593 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-01 16:16:31,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:16:31,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:16:31,595 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 16:16:31,607 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 16:16:31,710 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-01 16:16:31,711 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:16:31,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 91 conjunts are in the unsatisfiable core [2022-03-01 16:16:31,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:16:32,569 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-01 16:16:32,920 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 16:16:34,105 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-03-01 16:16:34,106 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 11 treesize of output 11 [2022-03-01 16:16:34,529 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 16:16:35,346 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 16:16:35,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 16:16:35,765 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-01 16:16:36,761 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 47 treesize of output 15 [2022-03-01 16:16:37,045 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:16:37,045 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:17:12,753 INFO L353 Elim1Store]: treesize reduction 27, result has 61.4 percent of original size [2022-03-01 16:17:12,753 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 2 case distinctions, treesize of input 375 treesize of output 165 [2022-03-01 16:17:12,820 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-01 16:17:12,820 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 1336 treesize of output 1322 [2022-03-01 16:17:12,870 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-01 16:17:12,870 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1098 treesize of output 882 [2022-03-01 16:17:12,914 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-01 16:17:12,915 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 858 treesize of output 816 [2022-03-01 16:21:45,342 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-03-01 16:21:46,380 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:21:46,380 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [270513822] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 16:21:46,380 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 16:21:46,380 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44, 43] total 119 [2022-03-01 16:21:46,381 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691175036] [2022-03-01 16:21:46,381 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 16:21:46,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 119 states [2022-03-01 16:21:46,381 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:21:46,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2022-03-01 16:21:46,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=991, Invalid=12984, Unknown=67, NotChecked=0, Total=14042 [2022-03-01 16:21:46,385 INFO L87 Difference]: Start difference. First operand 552 states and 1257 transitions. Second operand has 119 states, 119 states have (on average 3.3781512605042017) internal successors, (402), 119 states have internal predecessors, (402), 0 states have call successors, (0), 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 16:22:05,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:22:05,813 INFO L93 Difference]: Finished difference Result 1856 states and 4477 transitions. [2022-03-01 16:22:05,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-03-01 16:22:05,814 INFO L78 Accepts]: Start accepts. Automaton has has 119 states, 119 states have (on average 3.3781512605042017) internal successors, (402), 119 states have internal predecessors, (402), 0 states have call successors, (0), 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 153 [2022-03-01 16:22:05,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:22:05,820 INFO L225 Difference]: With dead ends: 1856 [2022-03-01 16:22:05,820 INFO L226 Difference]: Without dead ends: 1754 [2022-03-01 16:22:05,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 240 SyntacticMatches, 17 SemanticMatches, 218 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14964 ImplicationChecksByTransitivity, 25.1s TimeCoverageRelationStatistics Valid=4877, Invalid=43142, Unknown=161, NotChecked=0, Total=48180 [2022-03-01 16:22:05,828 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 3482 mSDsluCounter, 8939 mSDsCounter, 0 mSdLazyCounter, 4333 mSolverCounterSat, 263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3482 SdHoareTripleChecker+Valid, 8555 SdHoareTripleChecker+Invalid, 8586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 263 IncrementalHoareTripleChecker+Valid, 4333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3990 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:22:05,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3482 Valid, 8555 Invalid, 8586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [263 Valid, 4333 Invalid, 0 Unknown, 3990 Unchecked, 2.3s Time] [2022-03-01 16:22:05,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1754 states. [2022-03-01 16:22:05,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1754 to 753. [2022-03-01 16:22:05,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 753 states, 752 states have (on average 2.179521276595745) internal successors, (1639), 752 states have internal predecessors, (1639), 0 states have call successors, (0), 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 16:22:05,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 1639 transitions. [2022-03-01 16:22:05,845 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 1639 transitions. Word has length 153 [2022-03-01 16:22:05,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:22:05,845 INFO L470 AbstractCegarLoop]: Abstraction has 753 states and 1639 transitions. [2022-03-01 16:22:05,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 119 states, 119 states have (on average 3.3781512605042017) internal successors, (402), 119 states have internal predecessors, (402), 0 states have call successors, (0), 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 16:22:05,846 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 1639 transitions. [2022-03-01 16:22:05,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-01 16:22:05,847 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:22:05,847 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] [2022-03-01 16:22:05,864 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 16:22:06,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:22:06,061 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 16:22:06,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:22:06,062 INFO L85 PathProgramCache]: Analyzing trace with hash 2078337974, now seen corresponding path program 3 times [2022-03-01 16:22:06,062 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:22:06,062 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55253404] [2022-03-01 16:22:06,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:22:06,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:22:06,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:22:09,928 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:22:09,928 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:22:09,928 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55253404] [2022-03-01 16:22:09,928 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55253404] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:22:09,928 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [373524284] [2022-03-01 16:22:09,928 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-01 16:22:09,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:22:09,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:22:09,929 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 16:22:09,930 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 16:22:10,023 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-03-01 16:22:10,023 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:22:10,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 92 conjunts are in the unsatisfiable core [2022-03-01 16:22:10,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:22:10,807 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-01 16:22:11,134 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 16:22:12,283 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-03-01 16:22:12,283 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 11 treesize of output 11 [2022-03-01 16:22:12,701 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 16:22:13,582 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 16:22:13,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 16:22:13,961 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 29 [2022-03-01 16:22:14,788 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 58 treesize of output 18 [2022-03-01 16:22:15,204 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:22:15,204 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:22:57,810 INFO L353 Elim1Store]: treesize reduction 27, result has 61.4 percent of original size [2022-03-01 16:22:57,811 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 2 case distinctions, treesize of input 325 treesize of output 151 [2022-03-01 16:22:57,870 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-01 16:22:57,870 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 832 treesize of output 914 [2022-03-01 16:22:57,927 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-01 16:22:57,929 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 714 treesize of output 744 [2022-03-01 16:22:57,967 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-01 16:22:57,967 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 630 treesize of output 558 [2022-03-01 16:23:39,349 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-03-01 16:23:40,713 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:23:40,713 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [373524284] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 16:23:40,713 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 16:23:40,714 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 45, 45] total 128 [2022-03-01 16:23:40,714 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084016649] [2022-03-01 16:23:40,714 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 16:23:40,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 128 states [2022-03-01 16:23:40,714 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:23:40,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2022-03-01 16:23:40,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1018, Invalid=15203, Unknown=35, NotChecked=0, Total=16256 [2022-03-01 16:23:40,716 INFO L87 Difference]: Start difference. First operand 753 states and 1639 transitions. Second operand has 128 states, 128 states have (on average 3.2109375) internal successors, (411), 128 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 16:24:19,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:24:19,101 INFO L93 Difference]: Finished difference Result 3087 states and 7755 transitions. [2022-03-01 16:24:19,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 187 states. [2022-03-01 16:24:19,101 INFO L78 Accepts]: Start accepts. Automaton has has 128 states, 128 states have (on average 3.2109375) internal successors, (411), 128 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 153 [2022-03-01 16:24:19,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:24:19,111 INFO L225 Difference]: With dead ends: 3087 [2022-03-01 16:24:19,111 INFO L226 Difference]: Without dead ends: 2985 [2022-03-01 16:24:19,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 528 GetRequests, 231 SyntacticMatches, 7 SemanticMatches, 290 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 26628 ImplicationChecksByTransitivity, 43.3s TimeCoverageRelationStatistics Valid=6433, Invalid=78435, Unknown=104, NotChecked=0, Total=84972 [2022-03-01 16:24:19,116 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 2841 mSDsluCounter, 16607 mSDsCounter, 0 mSdLazyCounter, 7967 mSolverCounterSat, 316 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2841 SdHoareTripleChecker+Valid, 15827 SdHoareTripleChecker+Invalid, 15078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 316 IncrementalHoareTripleChecker+Valid, 7967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6795 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-01 16:24:19,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2841 Valid, 15827 Invalid, 15078 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [316 Valid, 7967 Invalid, 0 Unknown, 6795 Unchecked, 4.4s Time] [2022-03-01 16:24:19,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2985 states. [2022-03-01 16:24:19,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2985 to 1021. [2022-03-01 16:24:19,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 1020 states have (on average 2.377450980392157) internal successors, (2425), 1020 states have internal predecessors, (2425), 0 states have call successors, (0), 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 16:24:19,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 2425 transitions. [2022-03-01 16:24:19,144 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 2425 transitions. Word has length 153 [2022-03-01 16:24:19,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:24:19,145 INFO L470 AbstractCegarLoop]: Abstraction has 1021 states and 2425 transitions. [2022-03-01 16:24:19,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 128 states, 128 states have (on average 3.2109375) internal successors, (411), 128 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 16:24:19,145 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 2425 transitions. [2022-03-01 16:24:19,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-01 16:24:19,147 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:24:19,147 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] [2022-03-01 16:24:19,166 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-01 16:24:19,359 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,SelfDestructingSolverStorable9 [2022-03-01 16:24:19,359 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 16:24:19,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:24:19,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1100911208, now seen corresponding path program 4 times [2022-03-01 16:24:19,360 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:24:19,360 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088939446] [2022-03-01 16:24:19,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:24:19,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:24:19,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:24:21,507 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:24:21,507 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:24:21,507 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088939446] [2022-03-01 16:24:21,507 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088939446] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:24:21,507 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910098133] [2022-03-01 16:24:21,507 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-01 16:24:21,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:24:21,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:24:21,508 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 16:24:21,509 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 16:24:21,586 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-01 16:24:21,586 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:24:21,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 94 conjunts are in the unsatisfiable core [2022-03-01 16:24:21,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:24:21,665 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-01 16:24:21,720 INFO L353 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-03-01 16:24:21,721 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-03-01 16:24:22,482 INFO L353 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-03-01 16:24:22,482 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 22 treesize of output 33 [2022-03-01 16:24:22,855 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 16:24:24,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 16:24:24,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 16:24:24,147 INFO L353 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2022-03-01 16:24:24,147 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 17 [2022-03-01 16:24:24,483 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 16:24:25,213 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 16:24:25,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 16:24:25,580 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 29 [2022-03-01 16:24:26,263 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 58 treesize of output 18 [2022-03-01 16:24:26,612 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:24:26,612 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:25:09,100 INFO L353 Elim1Store]: treesize reduction 27, result has 61.4 percent of original size [2022-03-01 16:25:09,100 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 2 case distinctions, treesize of input 325 treesize of output 151 [2022-03-01 16:25:09,160 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-01 16:25:09,161 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 832 treesize of output 914 [2022-03-01 16:25:09,201 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-01 16:25:09,202 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 690 treesize of output 618 [2022-03-01 16:25:09,247 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-01 16:25:09,248 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 594 treesize of output 624 [2022-03-01 16:25:22,170 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:25:22,170 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910098133] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 16:25:22,170 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 16:25:22,170 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 45, 46] total 124 [2022-03-01 16:25:22,170 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873012025] [2022-03-01 16:25:22,170 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 16:25:22,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 124 states [2022-03-01 16:25:22,171 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:25:22,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 124 interpolants. [2022-03-01 16:25:22,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1126, Invalid=14055, Unknown=71, NotChecked=0, Total=15252 [2022-03-01 16:25:22,173 INFO L87 Difference]: Start difference. First operand 1021 states and 2425 transitions. Second operand has 124 states, 124 states have (on average 3.314516129032258) internal successors, (411), 124 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 16:25:37,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:25:37,198 INFO L93 Difference]: Finished difference Result 1900 states and 4655 transitions. [2022-03-01 16:25:37,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2022-03-01 16:25:37,198 INFO L78 Accepts]: Start accepts. Automaton has has 124 states, 124 states have (on average 3.314516129032258) internal successors, (411), 124 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 153 [2022-03-01 16:25:37,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:25:37,205 INFO L225 Difference]: With dead ends: 1900 [2022-03-01 16:25:37,205 INFO L226 Difference]: Without dead ends: 1849 [2022-03-01 16:25:37,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 238 SyntacticMatches, 9 SemanticMatches, 216 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15406 ImplicationChecksByTransitivity, 22.7s TimeCoverageRelationStatistics Valid=4802, Invalid=42362, Unknown=142, NotChecked=0, Total=47306 [2022-03-01 16:25:37,208 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 3226 mSDsluCounter, 7613 mSDsCounter, 0 mSdLazyCounter, 3577 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3226 SdHoareTripleChecker+Valid, 7100 SdHoareTripleChecker+Invalid, 8101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 3577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4324 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-01 16:25:37,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3226 Valid, 7100 Invalid, 8101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 3577 Invalid, 0 Unknown, 4324 Unchecked, 1.8s Time] [2022-03-01 16:25:37,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1849 states. [2022-03-01 16:25:37,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1849 to 1005. [2022-03-01 16:25:37,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 1004 states have (on average 2.3595617529880477) internal successors, (2369), 1004 states have internal predecessors, (2369), 0 states have call successors, (0), 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 16:25:37,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 2369 transitions. [2022-03-01 16:25:37,251 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 2369 transitions. Word has length 153 [2022-03-01 16:25:37,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:25:37,251 INFO L470 AbstractCegarLoop]: Abstraction has 1005 states and 2369 transitions. [2022-03-01 16:25:37,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 124 states, 124 states have (on average 3.314516129032258) internal successors, (411), 124 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 16:25:37,252 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 2369 transitions. [2022-03-01 16:25:37,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-01 16:25:37,254 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:25:37,254 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] [2022-03-01 16:25:37,285 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 16:25:37,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:25:37,461 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 16:25:37,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:25:37,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1173633100, now seen corresponding path program 5 times [2022-03-01 16:25:37,461 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:25:37,461 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108253120] [2022-03-01 16:25:37,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:25:37,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:25:37,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:25:41,608 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:25:41,609 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:25:41,609 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108253120] [2022-03-01 16:25:41,609 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108253120] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:25:41,609 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [311170609] [2022-03-01 16:25:41,609 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-01 16:25:41,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:25:41,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:25:41,610 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 16:25:41,611 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 16:25:41,692 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-03-01 16:25:41,693 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:25:41,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 61 conjunts are in the unsatisfiable core [2022-03-01 16:25:41,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:25:44,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 16:25:44,343 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 29 [2022-03-01 16:25:44,888 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-01 16:25:44,889 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 54 treesize of output 36 [2022-03-01 16:25:45,322 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 16:25:45,322 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:25:46,685 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-01 16:25:46,685 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 176 treesize of output 236 [2022-03-01 16:25:46,707 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-01 16:25:46,708 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 124 treesize of output 142 [2022-03-01 16:25:54,639 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 16:25:54,640 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [311170609] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 16:25:54,640 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 16:25:54,640 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 37, 32] total 106 [2022-03-01 16:25:54,640 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893422330] [2022-03-01 16:25:54,640 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 16:25:54,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 106 states [2022-03-01 16:25:54,640 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:25:54,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2022-03-01 16:25:54,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=534, Invalid=10593, Unknown=3, NotChecked=0, Total=11130 [2022-03-01 16:25:54,642 INFO L87 Difference]: Start difference. First operand 1005 states and 2369 transitions. Second operand has 106 states, 106 states have (on average 3.8773584905660377) internal successors, (411), 106 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 16:26:52,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:26:52,295 INFO L93 Difference]: Finished difference Result 4107 states and 10422 transitions. [2022-03-01 16:26:52,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 205 states. [2022-03-01 16:26:52,296 INFO L78 Accepts]: Start accepts. Automaton has has 106 states, 106 states have (on average 3.8773584905660377) internal successors, (411), 106 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 153 [2022-03-01 16:26:52,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:26:52,307 INFO L225 Difference]: With dead ends: 4107 [2022-03-01 16:26:52,308 INFO L226 Difference]: Without dead ends: 3873 [2022-03-01 16:26:52,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 587 GetRequests, 253 SyntacticMatches, 51 SemanticMatches, 283 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29972 ImplicationChecksByTransitivity, 58.4s TimeCoverageRelationStatistics Valid=6453, Invalid=74422, Unknown=65, NotChecked=0, Total=80940 [2022-03-01 16:26:52,311 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 4378 mSDsluCounter, 12481 mSDsCounter, 0 mSdLazyCounter, 9626 mSolverCounterSat, 560 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4378 SdHoareTripleChecker+Valid, 11947 SdHoareTripleChecker+Invalid, 13014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 560 IncrementalHoareTripleChecker+Valid, 9626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2828 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-01 16:26:52,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4378 Valid, 11947 Invalid, 13014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [560 Valid, 9626 Invalid, 0 Unknown, 2828 Unchecked, 5.9s Time] [2022-03-01 16:26:52,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3873 states. [2022-03-01 16:26:52,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3873 to 1195. [2022-03-01 16:26:52,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1195 states, 1194 states have (on average 2.3877721943048575) internal successors, (2851), 1194 states have internal predecessors, (2851), 0 states have call successors, (0), 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 16:26:52,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1195 states to 1195 states and 2851 transitions. [2022-03-01 16:26:52,342 INFO L78 Accepts]: Start accepts. Automaton has 1195 states and 2851 transitions. Word has length 153 [2022-03-01 16:26:52,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:26:52,342 INFO L470 AbstractCegarLoop]: Abstraction has 1195 states and 2851 transitions. [2022-03-01 16:26:52,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 106 states, 106 states have (on average 3.8773584905660377) internal successors, (411), 106 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 16:26:52,342 INFO L276 IsEmpty]: Start isEmpty. Operand 1195 states and 2851 transitions. [2022-03-01 16:26:52,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-01 16:26:52,345 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:26:52,345 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] [2022-03-01 16:26:52,364 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 16:26:52,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:26:52,555 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 16:26:52,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:26:52,556 INFO L85 PathProgramCache]: Analyzing trace with hash 2028444662, now seen corresponding path program 6 times [2022-03-01 16:26:52,556 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:26:52,556 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698113671] [2022-03-01 16:26:52,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:26:52,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:26:52,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:26:55,274 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:26:55,274 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:26:55,274 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698113671] [2022-03-01 16:26:55,274 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698113671] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:26:55,274 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [982942671] [2022-03-01 16:26:55,274 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-01 16:26:55,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:26:55,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:26:55,275 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 16:26:55,276 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 16:26:55,362 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-03-01 16:26:55,362 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:26:55,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 90 conjunts are in the unsatisfiable core [2022-03-01 16:26:55,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:26:57,717 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 16:26:58,367 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 16:26:58,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 16:26:58,657 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-01 16:26:59,149 INFO L353 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2022-03-01 16:26:59,150 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 41 treesize of output 13 [2022-03-01 16:26:59,409 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:26:59,409 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:27:01,734 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-01 16:27:01,734 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 113 treesize of output 77 [2022-03-01 16:27:01,788 INFO L353 Elim1Store]: treesize reduction 12, result has 89.0 percent of original size [2022-03-01 16:27:01,788 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 510 treesize of output 526 [2022-03-01 16:27:01,810 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-01 16:27:01,811 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 406 treesize of output 346 [2022-03-01 16:27:01,843 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-01 16:27:01,843 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 322 treesize of output 358 [2022-03-01 16:27:52,719 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:27:52,720 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [982942671] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 16:27:52,720 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 16:27:52,720 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 42, 36] total 110 [2022-03-01 16:27:52,720 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019237238] [2022-03-01 16:27:52,720 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 16:27:52,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 110 states [2022-03-01 16:27:52,721 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:27:52,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2022-03-01 16:27:52,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=908, Invalid=11070, Unknown=12, NotChecked=0, Total=11990 [2022-03-01 16:27:52,722 INFO L87 Difference]: Start difference. First operand 1195 states and 2851 transitions. Second operand has 110 states, 110 states have (on average 3.6545454545454548) internal successors, (402), 110 states have internal predecessors, (402), 0 states have call successors, (0), 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 16:28:11,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:28:11,258 INFO L93 Difference]: Finished difference Result 3498 states and 9067 transitions. [2022-03-01 16:28:11,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-03-01 16:28:11,258 INFO L78 Accepts]: Start accepts. Automaton has has 110 states, 110 states have (on average 3.6545454545454548) internal successors, (402), 110 states have internal predecessors, (402), 0 states have call successors, (0), 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 153 [2022-03-01 16:28:11,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:28:11,269 INFO L225 Difference]: With dead ends: 3498 [2022-03-01 16:28:11,269 INFO L226 Difference]: Without dead ends: 3396 [2022-03-01 16:28:11,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 239 SyntacticMatches, 22 SemanticMatches, 228 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18069 ImplicationChecksByTransitivity, 21.6s TimeCoverageRelationStatistics Valid=4408, Invalid=48240, Unknown=22, NotChecked=0, Total=52670 [2022-03-01 16:28:11,275 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 2975 mSDsluCounter, 10319 mSDsCounter, 0 mSdLazyCounter, 6708 mSolverCounterSat, 347 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2975 SdHoareTripleChecker+Valid, 9788 SdHoareTripleChecker+Invalid, 10318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 347 IncrementalHoareTripleChecker+Valid, 6708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3263 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:28:11,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2975 Valid, 9788 Invalid, 10318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [347 Valid, 6708 Invalid, 0 Unknown, 3263 Unchecked, 3.3s Time] [2022-03-01 16:28:11,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3396 states. [2022-03-01 16:28:11,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3396 to 1672. [2022-03-01 16:28:11,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1672 states, 1671 states have (on average 2.5858767205266306) internal successors, (4321), 1671 states have internal predecessors, (4321), 0 states have call successors, (0), 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 16:28:11,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 4321 transitions. [2022-03-01 16:28:11,311 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 4321 transitions. Word has length 153 [2022-03-01 16:28:11,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:28:11,311 INFO L470 AbstractCegarLoop]: Abstraction has 1672 states and 4321 transitions. [2022-03-01 16:28:11,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 110 states, 110 states have (on average 3.6545454545454548) internal successors, (402), 110 states have internal predecessors, (402), 0 states have call successors, (0), 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 16:28:11,312 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 4321 transitions. [2022-03-01 16:28:11,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-01 16:28:11,315 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:28:11,315 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] [2022-03-01 16:28:11,334 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 16:28:11,534 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,SelfDestructingSolverStorable12 [2022-03-01 16:28:11,535 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 16:28:11,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:28:11,535 INFO L85 PathProgramCache]: Analyzing trace with hash -520185780, now seen corresponding path program 7 times [2022-03-01 16:28:11,535 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:28:11,535 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825506887] [2022-03-01 16:28:11,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:28:11,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:28:11,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:28:13,689 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:28:13,689 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:28:13,689 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825506887] [2022-03-01 16:28:13,689 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825506887] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:28:13,689 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035919070] [2022-03-01 16:28:13,690 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-01 16:28:13,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:28:13,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:28:13,691 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 16:28:13,691 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 16:28:13,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:28:13,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 73 conjunts are in the unsatisfiable core [2022-03-01 16:28:13,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:28:16,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 16:28:16,455 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 29 [2022-03-01 16:28:16,901 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 16:28:16,905 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-01 16:28:16,905 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 24 [2022-03-01 16:28:17,309 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:28:17,309 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:28:18,432 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-01 16:28:18,432 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 176 treesize of output 236 [2022-03-01 16:28:18,451 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-01 16:28:18,452 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 124 treesize of output 142 [2022-03-01 16:28:24,779 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:28:24,779 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1035919070] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 16:28:24,779 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 16:28:24,780 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43, 38] total 114 [2022-03-01 16:28:24,780 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316929837] [2022-03-01 16:28:24,780 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 16:28:24,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 114 states [2022-03-01 16:28:24,780 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:28:24,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 114 interpolants. [2022-03-01 16:28:24,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=877, Invalid=12004, Unknown=1, NotChecked=0, Total=12882 [2022-03-01 16:28:24,781 INFO L87 Difference]: Start difference. First operand 1672 states and 4321 transitions. Second operand has 114 states, 114 states have (on average 3.6052631578947367) internal successors, (411), 114 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 16:28:57,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:28:57,741 INFO L93 Difference]: Finished difference Result 4590 states and 12165 transitions. [2022-03-01 16:28:57,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 225 states. [2022-03-01 16:28:57,741 INFO L78 Accepts]: Start accepts. Automaton has has 114 states, 114 states have (on average 3.6052631578947367) internal successors, (411), 114 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 153 [2022-03-01 16:28:57,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:28:57,754 INFO L225 Difference]: With dead ends: 4590 [2022-03-01 16:28:57,754 INFO L226 Difference]: Without dead ends: 4437 [2022-03-01 16:28:57,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 558 GetRequests, 233 SyntacticMatches, 6 SemanticMatches, 319 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38300 ImplicationChecksByTransitivity, 33.3s TimeCoverageRelationStatistics Valid=10388, Invalid=92116, Unknown=216, NotChecked=0, Total=102720 [2022-03-01 16:28:57,758 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 5530 mSDsluCounter, 11911 mSDsCounter, 0 mSdLazyCounter, 8127 mSolverCounterSat, 934 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5530 SdHoareTripleChecker+Valid, 11299 SdHoareTripleChecker+Invalid, 10732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 934 IncrementalHoareTripleChecker+Valid, 8127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1671 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-01 16:28:57,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5530 Valid, 11299 Invalid, 10732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [934 Valid, 8127 Invalid, 0 Unknown, 1671 Unchecked, 4.5s Time] [2022-03-01 16:28:57,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4437 states. [2022-03-01 16:28:57,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4437 to 1709. [2022-03-01 16:28:57,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1709 states, 1708 states have (on average 2.5960187353629975) internal successors, (4434), 1708 states have internal predecessors, (4434), 0 states have call successors, (0), 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 16:28:57,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1709 states to 1709 states and 4434 transitions. [2022-03-01 16:28:57,795 INFO L78 Accepts]: Start accepts. Automaton has 1709 states and 4434 transitions. Word has length 153 [2022-03-01 16:28:57,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:28:57,795 INFO L470 AbstractCegarLoop]: Abstraction has 1709 states and 4434 transitions. [2022-03-01 16:28:57,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 114 states, 114 states have (on average 3.6052631578947367) internal successors, (411), 114 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 16:28:57,795 INFO L276 IsEmpty]: Start isEmpty. Operand 1709 states and 4434 transitions. [2022-03-01 16:28:57,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-01 16:28:57,798 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:28:57,799 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] [2022-03-01 16:28:57,818 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 16:28:58,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:28:58,012 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 16:28:58,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:28:58,012 INFO L85 PathProgramCache]: Analyzing trace with hash -530082348, now seen corresponding path program 8 times [2022-03-01 16:28:58,012 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:28:58,012 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028744821] [2022-03-01 16:28:58,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:28:58,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:28:58,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:29:00,712 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:29:00,713 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:29:00,713 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028744821] [2022-03-01 16:29:00,713 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028744821] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:29:00,713 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825624868] [2022-03-01 16:29:00,713 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-01 16:29:00,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:29:00,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:29:00,714 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 16:29:00,715 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 16:29:00,800 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-01 16:29:00,800 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:29:00,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 91 conjunts are in the unsatisfiable core [2022-03-01 16:29:00,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:29:01,520 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-01 16:29:01,832 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 16:29:02,919 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-03-01 16:29:02,919 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 11 treesize of output 11 [2022-03-01 16:29:03,275 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 16:29:04,063 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 16:29:04,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 16:29:04,459 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-01 16:29:04,971 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 45 treesize of output 13 [2022-03-01 16:29:05,357 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:29:05,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2022-03-01 16:29:06,444 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-03-01 16:29:06,446 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-03-01 16:29:06,462 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-03-01 16:29:06,474 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-01 16:29:06,475 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-01 16:29:06,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:29:06,649 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was analyzing trace of length 154 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 16 for 1ms.. [2022-03-01 16:29:06,650 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-01 16:29:06,650 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-01 16:29:06,652 INFO L732 BasicCegarLoop]: Path program histogram: [8, 2, 1, 1, 1, 1, 1] [2022-03-01 16:29:06,653 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-01 16:29:06,653 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-01 16:29:06,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.03 04:29:06 BasicIcfg [2022-03-01 16:29:06,655 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-01 16:29:06,655 INFO L158 Benchmark]: Toolchain (without parser) took 760593.43ms. Allocated memory was 195.0MB in the beginning and 684.7MB in the end (delta: 489.7MB). Free memory was 138.2MB in the beginning and 369.9MB in the end (delta: -231.7MB). Peak memory consumption was 258.2MB. Max. memory is 8.0GB. [2022-03-01 16:29:06,655 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 195.0MB. Free memory is still 154.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-01 16:29:06,655 INFO L158 Benchmark]: CACSL2BoogieTranslator took 186.60ms. Allocated memory is still 195.0MB. Free memory was 138.0MB in the beginning and 163.7MB in the end (delta: -25.6MB). Peak memory consumption was 10.8MB. Max. memory is 8.0GB. [2022-03-01 16:29:06,656 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.44ms. Allocated memory is still 195.0MB. Free memory was 163.7MB in the beginning and 161.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-01 16:29:06,656 INFO L158 Benchmark]: Boogie Preprocessor took 17.27ms. Allocated memory is still 195.0MB. Free memory was 161.7MB in the beginning and 160.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-01 16:29:06,657 INFO L158 Benchmark]: RCFGBuilder took 448.72ms. Allocated memory is still 195.0MB. Free memory was 159.6MB in the beginning and 135.4MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2022-03-01 16:29:06,657 INFO L158 Benchmark]: TraceAbstraction took 759890.69ms. Allocated memory was 195.0MB in the beginning and 684.7MB in the end (delta: 489.7MB). Free memory was 134.9MB in the beginning and 369.9MB in the end (delta: -234.9MB). Peak memory consumption was 255.8MB. Max. memory is 8.0GB. [2022-03-01 16:29:06,663 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 195.0MB. Free memory is still 154.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 186.60ms. Allocated memory is still 195.0MB. Free memory was 138.0MB in the beginning and 163.7MB in the end (delta: -25.6MB). Peak memory consumption was 10.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 46.44ms. Allocated memory is still 195.0MB. Free memory was 163.7MB in the beginning and 161.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 17.27ms. Allocated memory is still 195.0MB. Free memory was 161.7MB in the beginning and 160.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 448.72ms. Allocated memory is still 195.0MB. Free memory was 159.6MB in the beginning and 135.4MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * TraceAbstraction took 759890.69ms. Allocated memory was 195.0MB in the beginning and 684.7MB in the end (delta: 489.7MB). Free memory was 134.9MB in the beginning and 369.9MB in the end (delta: -234.9MB). Peak memory consumption was 255.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 102]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 154 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 16 for 1ms.. - TimeoutResultAtElement [Line: 96]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 154 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 16 for 1ms.. - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 154 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 16 for 1ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 186 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 759.8s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.1s, AutomataDifference: 182.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23466 SdHoareTripleChecker+Valid, 22.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23466 mSDsluCounter, 67536 SdHoareTripleChecker+Invalid, 19.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 22871 IncrementalHoareTripleChecker+Unchecked, 69817 mSDsCounter, 2633 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40839 IncrementalHoareTripleChecker+Invalid, 66343 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2633 mSolverCounterUnsat, 2372 mSDtfsCounter, 40839 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3154 GetRequests, 1454 SyntacticMatches, 112 SemanticMatches, 1588 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 143347 ImplicationChecksByTransitivity, 204.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1709occurred in iteration=14, InterpolantAutomatonStates: 1037, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 14 MinimizatonAttempts, 12131 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 565.5s InterpolantComputationTime, 2927 NumberOfCodeBlocks, 2914 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 3819 ConstructedInterpolants, 354 QuantifiedInterpolants, 126945 SizeOfPredicates, 341 NumberOfNonLiveVariables, 2114 ConjunctsInSsa, 501 ConjunctsInUnsatCore, 26 InterpolantComputations, 8 PerfectInterpolantSequences, 14/84 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown