/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-more-sorted.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-01 16:00:55,062 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-01 16:00:55,063 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-01 16:00:55,108 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-01 16:00:55,154 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-01 16:00:55,154 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-01 16:00:55,155 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-01 16:00:55,156 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 16:00:55,188 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-01 16:00:55,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-01 16:00:55,189 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-01 16:00:55,189 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-01 16:00:55,190 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-01 16:00:55,190 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-01 16:00:55,190 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-01 16:00:55,190 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-01 16:00:55,190 INFO L138 SettingsManager]: * Use SBE=true [2022-03-01 16:00:55,191 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-01 16:00:55,191 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-01 16:00:55,192 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-01 16:00:55,192 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-01 16:00:55,192 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-01 16:00:55,192 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-01 16:00:55,192 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-01 16:00:55,192 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-01 16:00:55,192 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-01 16:00:55,192 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-01 16:00:55,192 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-01 16:00:55,193 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-01 16:00:55,193 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-01 16:00:55,193 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-01 16:00:55,193 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-01 16:00:55,193 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-01 16:00:55,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 16:00:55,193 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-01 16:00:55,193 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-01 16:00:55,194 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-01 16:00:55,194 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-01 16:00:55,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-01 16:00:55,194 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-01 16:00:55,194 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-01 16:00:55,194 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-01 16:00:55,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-01 16:00:55,385 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-01 16:00:55,386 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-01 16:00:55,387 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-01 16:00:55,391 INFO L275 PluginConnector]: CDTParser initialized [2022-03-01 16:00:55,392 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-sorted.wvr.c [2022-03-01 16:00:55,446 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1568d7d40/17164e89c6a542cea43cab8501773952/FLAGf30bc4876 [2022-03-01 16:00:55,751 INFO L306 CDTParser]: Found 1 translation units. [2022-03-01 16:00:55,751 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-sorted.wvr.c [2022-03-01 16:00:55,760 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1568d7d40/17164e89c6a542cea43cab8501773952/FLAGf30bc4876 [2022-03-01 16:00:56,176 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1568d7d40/17164e89c6a542cea43cab8501773952 [2022-03-01 16:00:56,177 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-01 16:00:56,178 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-01 16:00:56,183 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-01 16:00:56,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-01 16:00:56,186 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-01 16:00:56,187 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.03 04:00:56" (1/1) ... [2022-03-01 16:00:56,189 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dcea3d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:00:56, skipping insertion in model container [2022-03-01 16:00:56,189 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.03 04:00:56" (1/1) ... [2022-03-01 16:00:56,195 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-01 16:00:56,213 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-01 16:00:56,454 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-more-sorted.wvr.c[2434,2447] [2022-03-01 16:00:56,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-01 16:00:56,490 INFO L203 MainTranslator]: Completed pre-run [2022-03-01 16:00:56,528 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-more-sorted.wvr.c[2434,2447] [2022-03-01 16:00:56,531 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-01 16:00:56,541 INFO L208 MainTranslator]: Completed translation [2022-03-01 16:00:56,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:00:56 WrapperNode [2022-03-01 16:00:56,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-01 16:00:56,543 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-01 16:00:56,543 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-01 16:00:56,543 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-01 16:00:56,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:00:56" (1/1) ... [2022-03-01 16:00:56,554 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:00:56" (1/1) ... [2022-03-01 16:00:56,570 INFO L137 Inliner]: procedures = 24, calls = 37, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 105 [2022-03-01 16:00:56,571 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-01 16:00:56,571 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-01 16:00:56,571 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-01 16:00:56,572 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-01 16:00:56,578 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:00:56" (1/1) ... [2022-03-01 16:00:56,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:00:56" (1/1) ... [2022-03-01 16:00:56,581 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:00:56" (1/1) ... [2022-03-01 16:00:56,582 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:00:56" (1/1) ... [2022-03-01 16:00:56,587 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:00:56" (1/1) ... [2022-03-01 16:00:56,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:00:56" (1/1) ... [2022-03-01 16:00:56,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:00:56" (1/1) ... [2022-03-01 16:00:56,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-01 16:00:56,594 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-01 16:00:56,594 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-01 16:00:56,595 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-01 16:00:56,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:00:56" (1/1) ... [2022-03-01 16:00:56,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 16:00:56,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:00:56,633 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 16:00:56,636 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 16:00:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-01 16:00:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-01 16:00:56,660 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-01 16:00:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-01 16:00:56,661 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-01 16:00:56,662 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-01 16:00:56,662 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-01 16:00:56,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-01 16:00:56,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-01 16:00:56,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-01 16:00:56,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-01 16:00:56,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-01 16:00:56,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-01 16:00:56,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-01 16:00:56,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-01 16:00:56,665 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 16:00:56,760 INFO L234 CfgBuilder]: Building ICFG [2022-03-01 16:00:56,761 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-01 16:00:57,106 INFO L275 CfgBuilder]: Performing block encoding [2022-03-01 16:00:57,114 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-01 16:00:57,114 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-03-01 16:00:57,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 04:00:57 BoogieIcfgContainer [2022-03-01 16:00:57,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-01 16:00:57,120 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-01 16:00:57,120 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-01 16:00:57,123 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-01 16:00:57,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.03 04:00:56" (1/3) ... [2022-03-01 16:00:57,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a8fd43f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 04:00:57, skipping insertion in model container [2022-03-01 16:00:57,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:00:56" (2/3) ... [2022-03-01 16:00:57,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a8fd43f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 04:00:57, skipping insertion in model container [2022-03-01 16:00:57,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 04:00:57" (3/3) ... [2022-03-01 16:00:57,126 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-sorted.wvr.c [2022-03-01 16:00:57,133 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-01 16:00:57,133 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-01 16:00:57,134 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-01 16:00:57,134 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-01 16:00:57,194 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,195 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,195 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,195 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,196 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,196 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,196 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,197 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,197 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,197 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,197 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,197 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,198 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,198 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,198 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,198 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,198 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,198 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,199 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,199 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,200 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,200 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,201 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,201 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,201 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,201 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,202 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,202 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,203 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,203 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,203 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,203 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,204 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,204 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,204 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,204 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,204 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,204 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,204 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,205 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,205 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,205 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,205 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,205 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,205 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,205 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,207 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,207 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,207 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,208 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,208 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,208 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,209 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,209 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,209 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,209 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,210 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,210 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,210 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,210 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,210 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,210 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,211 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,211 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,211 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,211 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,211 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,211 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,212 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,212 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,212 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,212 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,212 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,213 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,213 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,213 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,213 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,213 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,213 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,213 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,214 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,214 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,214 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,214 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,214 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,215 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,215 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,215 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,215 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,215 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,215 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,215 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,216 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,216 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,216 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,216 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,217 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,217 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,217 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,217 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,217 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,218 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,218 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,218 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,218 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,218 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,218 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,219 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,219 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,219 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,219 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,219 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,220 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,220 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,220 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,220 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,221 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,221 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,221 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,221 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,221 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,221 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,221 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,221 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,222 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,222 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,222 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,222 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,222 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,222 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,222 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,222 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,223 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,223 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,223 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,223 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,223 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,223 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,223 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,223 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,224 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,224 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,224 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,224 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,231 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,231 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,231 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,231 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~short12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,232 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,232 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,232 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,234 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,234 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,234 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,235 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,235 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~short4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,235 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,235 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,236 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,236 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,236 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,236 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,236 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,236 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,237 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:00:57,243 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-01 16:00:57,277 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-01 16:00:57,283 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 16:00:57,283 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-01 16:00:57,294 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 179 places, 184 transitions, 392 flow [2022-03-01 16:00:58,126 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 22492 states, 22491 states have (on average 3.977679960873238) internal successors, (89462), 22491 states have internal predecessors, (89462), 0 states have call successors, (0), 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 16:00:58,187 INFO L276 IsEmpty]: Start isEmpty. Operand has 22492 states, 22491 states have (on average 3.977679960873238) internal successors, (89462), 22491 states have internal predecessors, (89462), 0 states have call successors, (0), 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 16:00:58,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-01 16:00:58,468 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:00:58,469 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] [2022-03-01 16:00:58,470 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:00:58,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:00:58,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1826430064, now seen corresponding path program 1 times [2022-03-01 16:00:58,484 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:00:58,485 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899290724] [2022-03-01 16:00:58,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:00:58,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:00:58,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:00:58,708 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 16:00:58,708 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:00:58,709 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899290724] [2022-03-01 16:00:58,709 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899290724] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:00:58,709 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:00:58,710 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-01 16:00:58,711 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798438079] [2022-03-01 16:00:58,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:00:58,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-01 16:00:58,715 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:00:58,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-01 16:00:58,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-01 16:00:58,791 INFO L87 Difference]: Start difference. First operand has 22492 states, 22491 states have (on average 3.977679960873238) internal successors, (89462), 22491 states have internal predecessors, (89462), 0 states have call successors, (0), 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 54.5) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:00:59,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:00:59,320 INFO L93 Difference]: Finished difference Result 22492 states and 85674 transitions. [2022-03-01 16:00:59,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 16:00:59,322 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 54.5) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-01 16:00:59,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:00:59,602 INFO L225 Difference]: With dead ends: 22492 [2022-03-01 16:00:59,602 INFO L226 Difference]: Without dead ends: 22488 [2022-03-01 16:00:59,604 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 16:00:59,607 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:00:59,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 156 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 16:00:59,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22488 states. [2022-03-01 16:01:00,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22488 to 22488. [2022-03-01 16:01:00,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22488 states, 22487 states have (on average 3.8097567483434873) internal successors, (85670), 22487 states have internal predecessors, (85670), 0 states have call successors, (0), 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 16:01:00,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22488 states to 22488 states and 85670 transitions. [2022-03-01 16:01:00,714 INFO L78 Accepts]: Start accepts. Automaton has 22488 states and 85670 transitions. Word has length 109 [2022-03-01 16:01:00,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:00,856 INFO L470 AbstractCegarLoop]: Abstraction has 22488 states and 85670 transitions. [2022-03-01 16:01:00,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 54.5) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:00,856 INFO L276 IsEmpty]: Start isEmpty. Operand 22488 states and 85670 transitions. [2022-03-01 16:01:00,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-01 16:01:00,987 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:00,987 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] [2022-03-01 16:01:00,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-01 16:01:00,988 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:00,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:00,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1142567077, now seen corresponding path program 1 times [2022-03-01 16:01:00,989 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:00,989 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450847895] [2022-03-01 16:01:00,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:00,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:01,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:01,327 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 16:01:01,328 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:01,328 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450847895] [2022-03-01 16:01:01,328 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450847895] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:01,328 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:01,328 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-01 16:01:01,329 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544912470] [2022-03-01 16:01:01,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:01,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 16:01:01,330 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:01,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 16:01:01,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2022-03-01 16:01:01,331 INFO L87 Difference]: Start difference. First operand 22488 states and 85670 transitions. Second operand has 8 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:01,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:01,745 INFO L93 Difference]: Finished difference Result 22507 states and 85689 transitions. [2022-03-01 16:01:01,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 16:01:01,747 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-01 16:01:01,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:01,850 INFO L225 Difference]: With dead ends: 22507 [2022-03-01 16:01:01,850 INFO L226 Difference]: Without dead ends: 22494 [2022-03-01 16:01:01,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=59, Unknown=0, NotChecked=0, Total=110 [2022-03-01 16:01:01,852 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 314 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:01,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [314 Valid, 410 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 16:01:01,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22494 states. [2022-03-01 16:01:02,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22494 to 22489. [2022-03-01 16:01:02,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22489 states, 22488 states have (on average 3.809631803628602) internal successors, (85671), 22488 states have internal predecessors, (85671), 0 states have call successors, (0), 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 16:01:02,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22489 states to 22489 states and 85671 transitions. [2022-03-01 16:01:02,789 INFO L78 Accepts]: Start accepts. Automaton has 22489 states and 85671 transitions. Word has length 109 [2022-03-01 16:01:02,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:02,790 INFO L470 AbstractCegarLoop]: Abstraction has 22489 states and 85671 transitions. [2022-03-01 16:01:02,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:01:02,790 INFO L276 IsEmpty]: Start isEmpty. Operand 22489 states and 85671 transitions. [2022-03-01 16:01:03,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-03-01 16:01:03,128 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:03,128 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] [2022-03-01 16:01:03,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-01 16:01:03,129 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:03,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:03,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1773050963, now seen corresponding path program 1 times [2022-03-01 16:01:03,144 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:03,144 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218642161] [2022-03-01 16:01:03,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:03,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:03,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:03,379 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 16:01:03,380 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:03,380 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218642161] [2022-03-01 16:01:03,381 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218642161] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:03,381 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:03,381 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 16:01:03,382 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829505859] [2022-03-01 16:01:03,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:03,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-01 16:01:03,383 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:03,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-01 16:01:03,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-03-01 16:01:03,384 INFO L87 Difference]: Start difference. First operand 22489 states and 85671 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 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 16:01:04,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:04,160 INFO L93 Difference]: Finished difference Result 49972 states and 192087 transitions. [2022-03-01 16:01:04,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-01 16:01:04,161 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2022-03-01 16:01:04,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:04,541 INFO L225 Difference]: With dead ends: 49972 [2022-03-01 16:01:04,541 INFO L226 Difference]: Without dead ends: 49822 [2022-03-01 16:01:04,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-03-01 16:01:04,543 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 269 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 837 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 16:01:04,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 837 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 16:01:04,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49822 states. [2022-03-01 16:01:05,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49822 to 23099. [2022-03-01 16:01:05,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23099 states, 23098 states have (on average 3.799549744566629) internal successors, (87762), 23098 states have internal predecessors, (87762), 0 states have call successors, (0), 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 16:01:06,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23099 states to 23099 states and 87762 transitions. [2022-03-01 16:01:06,017 INFO L78 Accepts]: Start accepts. Automaton has 23099 states and 87762 transitions. Word has length 116 [2022-03-01 16:01:06,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:06,018 INFO L470 AbstractCegarLoop]: Abstraction has 23099 states and 87762 transitions. [2022-03-01 16:01:06,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 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 16:01:06,018 INFO L276 IsEmpty]: Start isEmpty. Operand 23099 states and 87762 transitions. [2022-03-01 16:01:06,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-03-01 16:01:06,082 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:06,082 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] [2022-03-01 16:01:06,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-01 16:01:06,084 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:06,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:06,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1662951717, now seen corresponding path program 1 times [2022-03-01 16:01:06,085 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:06,085 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563804132] [2022-03-01 16:01:06,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:06,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:06,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:06,231 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:01:06,231 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:06,232 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563804132] [2022-03-01 16:01:06,232 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563804132] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:01:06,232 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562804371] [2022-03-01 16:01:06,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:06,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:01:06,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:01:06,234 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 16:01:06,235 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 16:01:06,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:06,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-01 16:01:06,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:01:06,754 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:01:06,754 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:01:07,121 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:01:07,122 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562804371] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 16:01:07,122 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 16:01:07,122 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-03-01 16:01:07,122 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815298556] [2022-03-01 16:01:07,123 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 16:01:07,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-01 16:01:07,123 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:07,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-01 16:01:07,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2022-03-01 16:01:07,124 INFO L87 Difference]: Start difference. First operand 23099 states and 87762 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 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 16:01:07,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:07,770 INFO L93 Difference]: Finished difference Result 30919 states and 115103 transitions. [2022-03-01 16:01:07,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-01 16:01:07,770 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 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 126 [2022-03-01 16:01:07,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:07,892 INFO L225 Difference]: With dead ends: 30919 [2022-03-01 16:01:07,893 INFO L226 Difference]: Without dead ends: 30847 [2022-03-01 16:01:07,894 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=201, Invalid=555, Unknown=0, NotChecked=0, Total=756 [2022-03-01 16:01:07,900 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 959 mSDsluCounter, 1429 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 959 SdHoareTripleChecker+Valid, 1557 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:07,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [959 Valid, 1557 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 16:01:07,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30847 states. [2022-03-01 16:01:08,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30847 to 25820. [2022-03-01 16:01:08,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25820 states, 25819 states have (on average 3.7945698903907976) internal successors, (97972), 25819 states have internal predecessors, (97972), 0 states have call successors, (0), 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 16:01:08,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25820 states to 25820 states and 97972 transitions. [2022-03-01 16:01:08,846 INFO L78 Accepts]: Start accepts. Automaton has 25820 states and 97972 transitions. Word has length 126 [2022-03-01 16:01:08,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:08,850 INFO L470 AbstractCegarLoop]: Abstraction has 25820 states and 97972 transitions. [2022-03-01 16:01:08,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 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 16:01:08,850 INFO L276 IsEmpty]: Start isEmpty. Operand 25820 states and 97972 transitions. [2022-03-01 16:01:08,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-03-01 16:01:08,917 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:08,917 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] [2022-03-01 16:01:08,934 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 16:01:09,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:01:09,118 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:09,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:09,119 INFO L85 PathProgramCache]: Analyzing trace with hash -707250143, now seen corresponding path program 1 times [2022-03-01 16:01:09,119 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:09,119 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725188744] [2022-03-01 16:01:09,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:09,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:09,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:09,176 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 16:01:09,176 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:09,177 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725188744] [2022-03-01 16:01:09,177 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725188744] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:09,177 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:09,177 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-01 16:01:09,177 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823864499] [2022-03-01 16:01:09,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:09,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-01 16:01:09,178 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:09,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-01 16:01:09,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-01 16:01:09,178 INFO L87 Difference]: Start difference. First operand 25820 states and 97972 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 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 16:01:09,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:09,602 INFO L93 Difference]: Finished difference Result 39241 states and 149311 transitions. [2022-03-01 16:01:09,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-01 16:01:09,623 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2022-03-01 16:01:09,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:09,790 INFO L225 Difference]: With dead ends: 39241 [2022-03-01 16:01:09,790 INFO L226 Difference]: Without dead ends: 39241 [2022-03-01 16:01:09,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-01 16:01:09,791 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 149 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:09,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 505 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 16:01:09,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39241 states. [2022-03-01 16:01:10,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39241 to 29846. [2022-03-01 16:01:10,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29846 states, 29845 states have (on average 3.8436589043390854) internal successors, (114714), 29845 states have internal predecessors, (114714), 0 states have call successors, (0), 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 16:01:10,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29846 states to 29846 states and 114714 transitions. [2022-03-01 16:01:10,715 INFO L78 Accepts]: Start accepts. Automaton has 29846 states and 114714 transitions. Word has length 126 [2022-03-01 16:01:10,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:10,715 INFO L470 AbstractCegarLoop]: Abstraction has 29846 states and 114714 transitions. [2022-03-01 16:01:10,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 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 16:01:10,716 INFO L276 IsEmpty]: Start isEmpty. Operand 29846 states and 114714 transitions. [2022-03-01 16:01:11,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-03-01 16:01:11,042 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:11,042 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] [2022-03-01 16:01:11,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-01 16:01:11,043 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:11,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:11,052 INFO L85 PathProgramCache]: Analyzing trace with hash 798489673, now seen corresponding path program 1 times [2022-03-01 16:01:11,052 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:11,052 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103639878] [2022-03-01 16:01:11,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:11,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:11,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:11,131 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 16:01:11,131 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:11,131 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103639878] [2022-03-01 16:01:11,131 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103639878] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:11,132 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:01:11,132 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-01 16:01:11,132 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251030069] [2022-03-01 16:01:11,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:11,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-01 16:01:11,132 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:11,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-01 16:01:11,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-01 16:01:11,133 INFO L87 Difference]: Start difference. First operand 29846 states and 114714 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 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 16:01:11,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:11,475 INFO L93 Difference]: Finished difference Result 46687 states and 178885 transitions. [2022-03-01 16:01:11,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-01 16:01:11,476 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2022-03-01 16:01:11,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:12,013 INFO L225 Difference]: With dead ends: 46687 [2022-03-01 16:01:12,013 INFO L226 Difference]: Without dead ends: 46687 [2022-03-01 16:01:12,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-01 16:01:12,014 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 168 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:12,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 515 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 16:01:12,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46687 states. [2022-03-01 16:01:12,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46687 to 34886. [2022-03-01 16:01:12,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34886 states, 34885 states have (on average 3.887286799484019) internal successors, (135608), 34885 states have internal predecessors, (135608), 0 states have call successors, (0), 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 16:01:13,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34886 states to 34886 states and 135608 transitions. [2022-03-01 16:01:13,086 INFO L78 Accepts]: Start accepts. Automaton has 34886 states and 135608 transitions. Word has length 126 [2022-03-01 16:01:13,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:13,086 INFO L470 AbstractCegarLoop]: Abstraction has 34886 states and 135608 transitions. [2022-03-01 16:01:13,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 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 16:01:13,086 INFO L276 IsEmpty]: Start isEmpty. Operand 34886 states and 135608 transitions. [2022-03-01 16:01:13,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-03-01 16:01:13,440 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:13,440 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:13,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-01 16:01:13,441 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:13,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:13,441 INFO L85 PathProgramCache]: Analyzing trace with hash 2076160398, now seen corresponding path program 1 times [2022-03-01 16:01:13,441 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:13,442 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844330265] [2022-03-01 16:01:13,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:13,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:13,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:13,731 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:01:13,732 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:13,732 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844330265] [2022-03-01 16:01:13,732 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844330265] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:01:13,732 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223306650] [2022-03-01 16:01:13,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:13,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:01:13,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:01:13,734 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 16:01:13,735 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 16:01:13,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:13,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 13 conjunts are in the unsatisfiable core [2022-03-01 16:01:13,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:01:14,430 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:01:14,430 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:01:14,866 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:01:14,866 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223306650] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 16:01:14,866 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 16:01:14,866 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 30 [2022-03-01 16:01:14,866 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122194870] [2022-03-01 16:01:14,866 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 16:01:14,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-01 16:01:14,867 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:14,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-01 16:01:14,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=735, Unknown=0, NotChecked=0, Total=870 [2022-03-01 16:01:14,868 INFO L87 Difference]: Start difference. First operand 34886 states and 135608 transitions. Second operand has 30 states, 30 states have (on average 8.366666666666667) internal successors, (251), 30 states have internal predecessors, (251), 0 states have call successors, (0), 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 16:01:15,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:15,936 INFO L93 Difference]: Finished difference Result 34495 states and 131908 transitions. [2022-03-01 16:01:15,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-01 16:01:15,937 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 8.366666666666667) internal successors, (251), 30 states have internal predecessors, (251), 0 states have call successors, (0), 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 129 [2022-03-01 16:01:15,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:16,061 INFO L225 Difference]: With dead ends: 34495 [2022-03-01 16:01:16,061 INFO L226 Difference]: Without dead ends: 34261 [2022-03-01 16:01:16,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 239 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=438, Invalid=1542, Unknown=0, NotChecked=0, Total=1980 [2022-03-01 16:01:16,063 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 1817 mSDsluCounter, 1939 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1817 SdHoareTripleChecker+Valid, 2015 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:16,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1817 Valid, 2015 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:01:16,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34261 states. [2022-03-01 16:01:16,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34261 to 33338. [2022-03-01 16:01:16,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33338 states, 33337 states have (on average 3.853436122026577) internal successors, (128462), 33337 states have internal predecessors, (128462), 0 states have call successors, (0), 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 16:01:17,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33338 states to 33338 states and 128462 transitions. [2022-03-01 16:01:17,102 INFO L78 Accepts]: Start accepts. Automaton has 33338 states and 128462 transitions. Word has length 129 [2022-03-01 16:01:17,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:17,102 INFO L470 AbstractCegarLoop]: Abstraction has 33338 states and 128462 transitions. [2022-03-01 16:01:17,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 8.366666666666667) internal successors, (251), 30 states have internal predecessors, (251), 0 states have call successors, (0), 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 16:01:17,103 INFO L276 IsEmpty]: Start isEmpty. Operand 33338 states and 128462 transitions. [2022-03-01 16:01:17,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-03-01 16:01:17,193 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:17,193 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] [2022-03-01 16:01:17,215 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-01 16:01:17,414 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,SelfDestructingSolverStorable6 [2022-03-01 16:01:17,414 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:17,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:17,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1105932305, now seen corresponding path program 1 times [2022-03-01 16:01:17,415 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:17,415 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351709580] [2022-03-01 16:01:17,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:17,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:17,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:17,718 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:01:17,719 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:17,719 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351709580] [2022-03-01 16:01:17,719 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351709580] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:01:17,719 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1892657573] [2022-03-01 16:01:17,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:17,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:01:17,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:01:17,721 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 16:01:17,722 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 16:01:17,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:17,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 13 conjunts are in the unsatisfiable core [2022-03-01 16:01:17,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:01:18,308 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:01:18,309 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:01:18,746 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:01:18,746 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1892657573] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 16:01:18,746 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 16:01:18,746 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 31 [2022-03-01 16:01:18,747 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667946702] [2022-03-01 16:01:18,747 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 16:01:18,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-03-01 16:01:18,748 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:18,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-03-01 16:01:18,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=812, Unknown=0, NotChecked=0, Total=930 [2022-03-01 16:01:18,749 INFO L87 Difference]: Start difference. First operand 33338 states and 128462 transitions. Second operand has 31 states, 31 states have (on average 7.419354838709677) internal successors, (230), 31 states have internal predecessors, (230), 0 states have call successors, (0), 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 16:01:19,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:19,906 INFO L93 Difference]: Finished difference Result 31627 states and 122612 transitions. [2022-03-01 16:01:19,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:01:19,907 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 7.419354838709677) internal successors, (230), 31 states have internal predecessors, (230), 0 states have call successors, (0), 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 129 [2022-03-01 16:01:19,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:20,014 INFO L225 Difference]: With dead ends: 31627 [2022-03-01 16:01:20,014 INFO L226 Difference]: Without dead ends: 31289 [2022-03-01 16:01:20,015 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=379, Invalid=1601, Unknown=0, NotChecked=0, Total=1980 [2022-03-01 16:01:20,015 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 1549 mSDsluCounter, 2852 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1549 SdHoareTripleChecker+Valid, 2890 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:20,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1549 Valid, 2890 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:01:20,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31289 states. [2022-03-01 16:01:20,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31289 to 31284. [2022-03-01 16:01:20,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31284 states, 31283 states have (on average 3.892113927692357) internal successors, (121757), 31283 states have internal predecessors, (121757), 0 states have call successors, (0), 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 16:01:20,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31284 states to 31284 states and 121757 transitions. [2022-03-01 16:01:20,780 INFO L78 Accepts]: Start accepts. Automaton has 31284 states and 121757 transitions. Word has length 129 [2022-03-01 16:01:20,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:20,781 INFO L470 AbstractCegarLoop]: Abstraction has 31284 states and 121757 transitions. [2022-03-01 16:01:20,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 7.419354838709677) internal successors, (230), 31 states have internal predecessors, (230), 0 states have call successors, (0), 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 16:01:20,781 INFO L276 IsEmpty]: Start isEmpty. Operand 31284 states and 121757 transitions. [2022-03-01 16:01:21,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-01 16:01:21,066 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:21,066 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:21,100 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-03-01 16:01:21,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:01:21,284 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:21,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:21,284 INFO L85 PathProgramCache]: Analyzing trace with hash 750077751, now seen corresponding path program 2 times [2022-03-01 16:01:21,284 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:21,284 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962359754] [2022-03-01 16:01:21,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:21,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:21,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:21,419 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:01:21,419 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:21,419 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962359754] [2022-03-01 16:01:21,420 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962359754] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:01:21,420 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722634066] [2022-03-01 16:01:21,420 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-01 16:01:21,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:01:21,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:01:21,421 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 16:01:21,422 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 16:01:21,508 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-01 16:01:21,508 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:01:21,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 6 conjunts are in the unsatisfiable core [2022-03-01 16:01:21,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:01:21,757 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-01 16:01:21,757 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-01 16:01:21,757 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722634066] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:21,757 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-01 16:01:21,757 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 15 [2022-03-01 16:01:21,758 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332998698] [2022-03-01 16:01:21,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:21,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-01 16:01:21,758 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:21,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-01 16:01:21,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-03-01 16:01:21,759 INFO L87 Difference]: Start difference. First operand 31284 states and 121757 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 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 16:01:22,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:22,696 INFO L93 Difference]: Finished difference Result 98126 states and 378917 transitions. [2022-03-01 16:01:22,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-01 16:01:22,696 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 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 16:01:22,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:23,109 INFO L225 Difference]: With dead ends: 98126 [2022-03-01 16:01:23,109 INFO L226 Difference]: Without dead ends: 98126 [2022-03-01 16:01:23,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 130 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2022-03-01 16:01:23,110 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 566 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 566 SdHoareTripleChecker+Valid, 1057 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:23,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [566 Valid, 1057 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 16:01:23,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98126 states. [2022-03-01 16:01:24,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98126 to 31993. [2022-03-01 16:01:24,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31993 states, 31992 states have (on average 3.8835021255313826) internal successors, (124241), 31992 states have internal predecessors, (124241), 0 states have call successors, (0), 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 16:01:25,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31993 states to 31993 states and 124241 transitions. [2022-03-01 16:01:25,068 INFO L78 Accepts]: Start accepts. Automaton has 31993 states and 124241 transitions. Word has length 133 [2022-03-01 16:01:25,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:25,068 INFO L470 AbstractCegarLoop]: Abstraction has 31993 states and 124241 transitions. [2022-03-01 16:01:25,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 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 16:01:25,069 INFO L276 IsEmpty]: Start isEmpty. Operand 31993 states and 124241 transitions. [2022-03-01 16:01:25,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-01 16:01:25,136 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:25,136 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:25,158 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 16:01:25,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:01:25,357 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:25,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:25,357 INFO L85 PathProgramCache]: Analyzing trace with hash -594103393, now seen corresponding path program 3 times [2022-03-01 16:01:25,357 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:25,357 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742289052] [2022-03-01 16:01:25,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:25,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:25,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:25,471 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:01:25,472 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:25,472 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742289052] [2022-03-01 16:01:25,472 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742289052] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:01:25,472 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609322190] [2022-03-01 16:01:25,472 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-01 16:01:25,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:01:25,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:01:25,474 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 16:01:25,475 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 16:01:25,564 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-03-01 16:01:25,564 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:01:25,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 6 conjunts are in the unsatisfiable core [2022-03-01 16:01:25,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:01:25,843 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-01 16:01:25,844 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-01 16:01:25,844 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609322190] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:25,844 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-01 16:01:25,844 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 15 [2022-03-01 16:01:25,844 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877439232] [2022-03-01 16:01:25,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:25,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-01 16:01:25,845 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:25,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-01 16:01:25,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-03-01 16:01:25,845 INFO L87 Difference]: Start difference. First operand 31993 states and 124241 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 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 16:01:27,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:27,213 INFO L93 Difference]: Finished difference Result 123155 states and 473630 transitions. [2022-03-01 16:01:27,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-01 16:01:27,213 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 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 16:01:27,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:27,813 INFO L225 Difference]: With dead ends: 123155 [2022-03-01 16:01:27,813 INFO L226 Difference]: Without dead ends: 123155 [2022-03-01 16:01:27,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 130 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2022-03-01 16:01:27,814 INFO L933 BasicCegarLoop]: 339 mSDtfsCounter, 581 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 581 SdHoareTripleChecker+Valid, 1045 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:27,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [581 Valid, 1045 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 16:01:27,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123155 states. [2022-03-01 16:01:29,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123155 to 32060. [2022-03-01 16:01:29,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32060 states, 32059 states have (on average 3.8874575002339435) internal successors, (124628), 32059 states have internal predecessors, (124628), 0 states have call successors, (0), 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 16:01:29,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32060 states to 32060 states and 124628 transitions. [2022-03-01 16:01:29,909 INFO L78 Accepts]: Start accepts. Automaton has 32060 states and 124628 transitions. Word has length 133 [2022-03-01 16:01:29,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:29,909 INFO L470 AbstractCegarLoop]: Abstraction has 32060 states and 124628 transitions. [2022-03-01 16:01:29,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 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 16:01:29,909 INFO L276 IsEmpty]: Start isEmpty. Operand 32060 states and 124628 transitions. [2022-03-01 16:01:30,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-01 16:01:30,273 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:30,273 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:30,296 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 16:01:30,473 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,SelfDestructingSolverStorable9 [2022-03-01 16:01:30,474 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:30,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:30,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1387474595, now seen corresponding path program 4 times [2022-03-01 16:01:30,475 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:30,475 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643674036] [2022-03-01 16:01:30,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:30,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:30,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:30,592 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:01:30,592 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:30,592 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643674036] [2022-03-01 16:01:30,592 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643674036] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:01:30,592 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502860678] [2022-03-01 16:01:30,592 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-01 16:01:30,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:01:30,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:01:30,594 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 16:01:30,595 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 16:01:30,684 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-01 16:01:30,685 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:01:30,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-01 16:01:30,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:01:31,033 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:01:31,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:01:31,425 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:01:31,425 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [502860678] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-01 16:01:31,425 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-01 16:01:31,425 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11, 11] total 25 [2022-03-01 16:01:31,425 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886908212] [2022-03-01 16:01:31,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:31,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 16:01:31,426 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:31,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 16:01:31,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=492, Unknown=0, NotChecked=0, Total=600 [2022-03-01 16:01:31,427 INFO L87 Difference]: Start difference. First operand 32060 states and 124628 transitions. Second operand has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 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 16:01:32,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:32,312 INFO L93 Difference]: Finished difference Result 60065 states and 229744 transitions. [2022-03-01 16:01:32,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-01 16:01:32,313 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 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 16:01:32,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:32,570 INFO L225 Difference]: With dead ends: 60065 [2022-03-01 16:01:32,570 INFO L226 Difference]: Without dead ends: 60065 [2022-03-01 16:01:32,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 250 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=251, Invalid=939, Unknown=0, NotChecked=0, Total=1190 [2022-03-01 16:01:32,571 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 824 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 824 SdHoareTripleChecker+Valid, 949 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:32,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [824 Valid, 949 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 16:01:32,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60065 states. [2022-03-01 16:01:33,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60065 to 32255. [2022-03-01 16:01:33,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32255 states, 32254 states have (on average 3.889502077261735) internal successors, (125452), 32254 states have internal predecessors, (125452), 0 states have call successors, (0), 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 16:01:33,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32255 states to 32255 states and 125452 transitions. [2022-03-01 16:01:33,928 INFO L78 Accepts]: Start accepts. Automaton has 32255 states and 125452 transitions. Word has length 133 [2022-03-01 16:01:33,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:33,928 INFO L470 AbstractCegarLoop]: Abstraction has 32255 states and 125452 transitions. [2022-03-01 16:01:33,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 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 16:01:33,928 INFO L276 IsEmpty]: Start isEmpty. Operand 32255 states and 125452 transitions. [2022-03-01 16:01:33,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-01 16:01:33,997 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:33,997 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:34,013 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 16:01:34,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:01:34,199 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:34,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:34,199 INFO L85 PathProgramCache]: Analyzing trace with hash -788184177, now seen corresponding path program 5 times [2022-03-01 16:01:34,199 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:34,199 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284171812] [2022-03-01 16:01:34,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:34,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:34,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:34,313 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:01:34,314 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:34,314 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284171812] [2022-03-01 16:01:34,314 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284171812] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:01:34,314 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [725510719] [2022-03-01 16:01:34,314 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-01 16:01:34,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:01:34,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:01:34,315 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 16:01:34,317 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 16:01:34,405 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-03-01 16:01:34,405 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:01:34,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 6 conjunts are in the unsatisfiable core [2022-03-01 16:01:34,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:01:34,616 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-01 16:01:34,617 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-01 16:01:34,617 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [725510719] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:34,617 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-01 16:01:34,617 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 15 [2022-03-01 16:01:34,617 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118173933] [2022-03-01 16:01:34,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:34,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-01 16:01:34,618 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:34,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-01 16:01:34,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2022-03-01 16:01:34,618 INFO L87 Difference]: Start difference. First operand 32255 states and 125452 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 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 16:01:35,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:35,706 INFO L93 Difference]: Finished difference Result 118696 states and 459293 transitions. [2022-03-01 16:01:35,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-01 16:01:35,706 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 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 16:01:35,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:36,619 INFO L225 Difference]: With dead ends: 118696 [2022-03-01 16:01:36,619 INFO L226 Difference]: Without dead ends: 118696 [2022-03-01 16:01:36,619 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 130 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2022-03-01 16:01:36,620 INFO L933 BasicCegarLoop]: 347 mSDtfsCounter, 564 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 564 SdHoareTripleChecker+Valid, 1070 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:36,620 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [564 Valid, 1070 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 16:01:36,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118696 states. [2022-03-01 16:01:38,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118696 to 32389. [2022-03-01 16:01:38,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32389 states, 32388 states have (on average 3.895238977399037) internal successors, (126159), 32388 states have internal predecessors, (126159), 0 states have call successors, (0), 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 16:01:38,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32389 states to 32389 states and 126159 transitions. [2022-03-01 16:01:38,615 INFO L78 Accepts]: Start accepts. Automaton has 32389 states and 126159 transitions. Word has length 133 [2022-03-01 16:01:38,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:38,615 INFO L470 AbstractCegarLoop]: Abstraction has 32389 states and 126159 transitions. [2022-03-01 16:01:38,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 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 16:01:38,615 INFO L276 IsEmpty]: Start isEmpty. Operand 32389 states and 126159 transitions. [2022-03-01 16:01:38,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-01 16:01:38,686 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:38,686 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:38,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-01 16:01:38,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:01:38,887 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:38,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:38,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1193393811, now seen corresponding path program 6 times [2022-03-01 16:01:38,887 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:38,888 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373509664] [2022-03-01 16:01:38,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:38,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:38,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:38,994 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:01:38,994 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:38,994 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373509664] [2022-03-01 16:01:38,994 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373509664] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:01:38,995 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1357366680] [2022-03-01 16:01:38,995 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-01 16:01:38,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:01:38,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:01:38,996 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 16:01:38,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-01 16:01:39,088 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-03-01 16:01:39,088 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:01:39,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-01 16:01:39,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:01:39,379 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:01:39,380 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:01:39,724 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:01:39,724 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1357366680] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-01 16:01:39,724 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-01 16:01:39,724 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11, 11] total 25 [2022-03-01 16:01:39,724 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591346738] [2022-03-01 16:01:39,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:39,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 16:01:39,725 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:39,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 16:01:39,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=493, Unknown=0, NotChecked=0, Total=600 [2022-03-01 16:01:39,725 INFO L87 Difference]: Start difference. First operand 32389 states and 126159 transitions. Second operand has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 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 16:01:40,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:40,461 INFO L93 Difference]: Finished difference Result 43445 states and 166127 transitions. [2022-03-01 16:01:40,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-01 16:01:40,462 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 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 16:01:40,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:40,600 INFO L225 Difference]: With dead ends: 43445 [2022-03-01 16:01:40,600 INFO L226 Difference]: Without dead ends: 43445 [2022-03-01 16:01:40,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 250 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=226, Invalid=896, Unknown=0, NotChecked=0, Total=1122 [2022-03-01 16:01:40,601 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 1087 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1087 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:40,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1087 Valid, 753 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 16:01:40,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43445 states. [2022-03-01 16:01:41,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43445 to 32247. [2022-03-01 16:01:41,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32247 states, 32246 states have (on average 3.886838677665447) internal successors, (125335), 32246 states have internal predecessors, (125335), 0 states have call successors, (0), 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 16:01:41,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32247 states to 32247 states and 125335 transitions. [2022-03-01 16:01:41,906 INFO L78 Accepts]: Start accepts. Automaton has 32247 states and 125335 transitions. Word has length 133 [2022-03-01 16:01:41,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:41,906 INFO L470 AbstractCegarLoop]: Abstraction has 32247 states and 125335 transitions. [2022-03-01 16:01:41,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 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 16:01:41,907 INFO L276 IsEmpty]: Start isEmpty. Operand 32247 states and 125335 transitions. [2022-03-01 16:01:41,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-01 16:01:41,973 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:41,973 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:41,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-01 16:01:42,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-03-01 16:01:42,174 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:42,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:42,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1419835785, now seen corresponding path program 7 times [2022-03-01 16:01:42,175 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:42,175 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981722935] [2022-03-01 16:01:42,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:42,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:42,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:42,305 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:01:42,305 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:42,305 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981722935] [2022-03-01 16:01:42,305 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981722935] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:01:42,305 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886011342] [2022-03-01 16:01:42,305 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-01 16:01:42,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:01:42,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:01:42,308 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 16:01:42,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-01 16:01:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:42,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-01 16:01:42,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:01:42,652 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:01:42,653 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:01:43,002 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:01:43,002 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1886011342] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-01 16:01:43,003 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-01 16:01:43,003 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11, 11] total 23 [2022-03-01 16:01:43,003 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131933307] [2022-03-01 16:01:43,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:43,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 16:01:43,003 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:43,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 16:01:43,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2022-03-01 16:01:43,004 INFO L87 Difference]: Start difference. First operand 32247 states and 125335 transitions. Second operand has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 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 16:01:43,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:43,669 INFO L93 Difference]: Finished difference Result 36546 states and 140261 transitions. [2022-03-01 16:01:43,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-01 16:01:43,669 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 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 16:01:43,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:43,786 INFO L225 Difference]: With dead ends: 36546 [2022-03-01 16:01:43,786 INFO L226 Difference]: Without dead ends: 36546 [2022-03-01 16:01:43,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 252 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=219, Invalid=837, Unknown=0, NotChecked=0, Total=1056 [2022-03-01 16:01:43,787 INFO L933 BasicCegarLoop]: 292 mSDtfsCounter, 735 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 735 SdHoareTripleChecker+Valid, 831 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:43,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [735 Valid, 831 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 16:01:43,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36546 states. [2022-03-01 16:01:44,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36546 to 32301. [2022-03-01 16:01:44,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32301 states, 32300 states have (on average 3.8863157894736844) internal successors, (125528), 32300 states have internal predecessors, (125528), 0 states have call successors, (0), 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 16:01:44,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32301 states to 32301 states and 125528 transitions. [2022-03-01 16:01:44,657 INFO L78 Accepts]: Start accepts. Automaton has 32301 states and 125528 transitions. Word has length 133 [2022-03-01 16:01:44,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:44,658 INFO L470 AbstractCegarLoop]: Abstraction has 32301 states and 125528 transitions. [2022-03-01 16:01:44,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 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 16:01:44,658 INFO L276 IsEmpty]: Start isEmpty. Operand 32301 states and 125528 transitions. [2022-03-01 16:01:44,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-01 16:01:44,726 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:44,726 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:44,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-01 16:01:44,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-03-01 16:01:44,927 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:44,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:44,927 INFO L85 PathProgramCache]: Analyzing trace with hash -902220473, now seen corresponding path program 8 times [2022-03-01 16:01:44,927 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:44,927 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142289258] [2022-03-01 16:01:44,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:44,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:44,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:45,050 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:01:45,051 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:45,051 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142289258] [2022-03-01 16:01:45,051 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142289258] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:01:45,051 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128487615] [2022-03-01 16:01:45,051 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-01 16:01:45,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:01:45,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:01:45,053 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 16:01:45,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-01 16:01:45,156 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-01 16:01:45,156 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:01:45,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 6 conjunts are in the unsatisfiable core [2022-03-01 16:01:45,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:01:45,390 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-01 16:01:45,391 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-01 16:01:45,391 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2128487615] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:45,391 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-01 16:01:45,391 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2022-03-01 16:01:45,391 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415472694] [2022-03-01 16:01:45,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:45,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-01 16:01:45,392 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:45,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-01 16:01:45,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:01:45,392 INFO L87 Difference]: Start difference. First operand 32301 states and 125528 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 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 16:01:47,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:47,117 INFO L93 Difference]: Finished difference Result 128097 states and 490402 transitions. [2022-03-01 16:01:47,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 16:01:47,135 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 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 16:01:47,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:47,823 INFO L225 Difference]: With dead ends: 128097 [2022-03-01 16:01:47,824 INFO L226 Difference]: Without dead ends: 128097 [2022-03-01 16:01:47,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2022-03-01 16:01:47,824 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 515 mSDsluCounter, 1102 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 1394 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:47,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [515 Valid, 1394 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 16:01:48,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128097 states. [2022-03-01 16:01:49,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128097 to 32474. [2022-03-01 16:01:49,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32474 states, 32473 states have (on average 3.889107874233979) internal successors, (126291), 32473 states have internal predecessors, (126291), 0 states have call successors, (0), 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 16:01:49,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32474 states to 32474 states and 126291 transitions. [2022-03-01 16:01:49,885 INFO L78 Accepts]: Start accepts. Automaton has 32474 states and 126291 transitions. Word has length 133 [2022-03-01 16:01:49,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:49,886 INFO L470 AbstractCegarLoop]: Abstraction has 32474 states and 126291 transitions. [2022-03-01 16:01:49,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 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 16:01:49,886 INFO L276 IsEmpty]: Start isEmpty. Operand 32474 states and 126291 transitions. [2022-03-01 16:01:49,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-01 16:01:49,955 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:49,955 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:49,971 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-03-01 16:01:50,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-03-01 16:01:50,156 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:50,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:50,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1080071459, now seen corresponding path program 9 times [2022-03-01 16:01:50,156 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:50,156 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004116394] [2022-03-01 16:01:50,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:50,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:50,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:50,276 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:01:50,277 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:50,277 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004116394] [2022-03-01 16:01:50,277 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004116394] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:01:50,277 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1994394889] [2022-03-01 16:01:50,277 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-01 16:01:50,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:01:50,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:01:50,278 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 16:01:50,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-01 16:01:50,412 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-03-01 16:01:50,412 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:01:50,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 6 conjunts are in the unsatisfiable core [2022-03-01 16:01:50,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:01:50,902 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-01 16:01:50,902 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-01 16:01:50,902 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1994394889] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:50,902 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-01 16:01:50,902 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2022-03-01 16:01:50,903 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500275567] [2022-03-01 16:01:50,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:50,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-01 16:01:50,903 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:50,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-01 16:01:50,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:01:50,908 INFO L87 Difference]: Start difference. First operand 32474 states and 126291 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 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 16:01:52,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:52,193 INFO L93 Difference]: Finished difference Result 147069 states and 563539 transitions. [2022-03-01 16:01:52,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 16:01:52,194 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 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 16:01:52,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:53,253 INFO L225 Difference]: With dead ends: 147069 [2022-03-01 16:01:53,253 INFO L226 Difference]: Without dead ends: 147069 [2022-03-01 16:01:53,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2022-03-01 16:01:53,254 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 520 mSDsluCounter, 876 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 1178 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:53,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [520 Valid, 1178 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 16:01:53,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147069 states. [2022-03-01 16:01:55,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147069 to 32311. [2022-03-01 16:01:55,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32311 states, 32310 states have (on average 3.8867533271432992) internal successors, (125581), 32310 states have internal predecessors, (125581), 0 states have call successors, (0), 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 16:01:55,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32311 states to 32311 states and 125581 transitions. [2022-03-01 16:01:55,398 INFO L78 Accepts]: Start accepts. Automaton has 32311 states and 125581 transitions. Word has length 133 [2022-03-01 16:01:55,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:55,399 INFO L470 AbstractCegarLoop]: Abstraction has 32311 states and 125581 transitions. [2022-03-01 16:01:55,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 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 16:01:55,399 INFO L276 IsEmpty]: Start isEmpty. Operand 32311 states and 125581 transitions. [2022-03-01 16:01:55,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-01 16:01:55,466 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:55,467 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:55,483 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-01 16:01:55,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-03-01 16:01:55,667 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:55,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:55,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1614730339, now seen corresponding path program 10 times [2022-03-01 16:01:55,668 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:55,668 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721772876] [2022-03-01 16:01:55,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:55,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:55,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:55,777 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:01:55,777 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:55,777 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721772876] [2022-03-01 16:01:55,777 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721772876] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:01:55,778 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1760686255] [2022-03-01 16:01:55,778 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-01 16:01:55,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:01:55,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:01:55,780 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 16:01:55,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-03-01 16:01:55,875 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-01 16:01:55,875 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:01:55,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-01 16:01:55,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:01:56,188 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:01:56,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:01:56,735 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:01:56,735 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1760686255] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-01 16:01:56,735 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-01 16:01:56,736 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11, 11] total 23 [2022-03-01 16:01:56,736 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107908932] [2022-03-01 16:01:56,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:56,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 16:01:56,736 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:56,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 16:01:56,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2022-03-01 16:01:56,737 INFO L87 Difference]: Start difference. First operand 32311 states and 125581 transitions. Second operand has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 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 16:01:57,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:01:57,285 INFO L93 Difference]: Finished difference Result 51034 states and 195310 transitions. [2022-03-01 16:01:57,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-01 16:01:57,285 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 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 16:01:57,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:01:57,452 INFO L225 Difference]: With dead ends: 51034 [2022-03-01 16:01:57,453 INFO L226 Difference]: Without dead ends: 51034 [2022-03-01 16:01:57,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 252 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=248, Invalid=808, Unknown=0, NotChecked=0, Total=1056 [2022-03-01 16:01:57,454 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 885 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 885 SdHoareTripleChecker+Valid, 985 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:01:57,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [885 Valid, 985 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 16:01:57,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51034 states. [2022-03-01 16:01:58,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51034 to 32293. [2022-03-01 16:01:58,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32293 states, 32292 states have (on average 3.8865043973739626) internal successors, (125503), 32292 states have internal predecessors, (125503), 0 states have call successors, (0), 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 16:01:58,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32293 states to 32293 states and 125503 transitions. [2022-03-01 16:01:58,777 INFO L78 Accepts]: Start accepts. Automaton has 32293 states and 125503 transitions. Word has length 133 [2022-03-01 16:01:58,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:01:58,777 INFO L470 AbstractCegarLoop]: Abstraction has 32293 states and 125503 transitions. [2022-03-01 16:01:58,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 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 16:01:58,777 INFO L276 IsEmpty]: Start isEmpty. Operand 32293 states and 125503 transitions. [2022-03-01 16:01:58,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-01 16:01:58,843 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:01:58,844 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:01:58,860 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-03-01 16:01:59,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-03-01 16:01:59,045 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:01:59,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:01:59,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1715781891, now seen corresponding path program 11 times [2022-03-01 16:01:59,045 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:01:59,045 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790932474] [2022-03-01 16:01:59,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:01:59,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:01:59,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:01:59,139 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:01:59,139 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:01:59,140 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790932474] [2022-03-01 16:01:59,140 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790932474] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:01:59,140 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20537724] [2022-03-01 16:01:59,140 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-01 16:01:59,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:01:59,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:01:59,141 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 16:01:59,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-03-01 16:01:59,238 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-03-01 16:01:59,238 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:01:59,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 6 conjunts are in the unsatisfiable core [2022-03-01 16:01:59,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:01:59,458 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-01 16:01:59,458 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-01 16:01:59,458 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20537724] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:01:59,458 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-01 16:01:59,458 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2022-03-01 16:01:59,459 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265603676] [2022-03-01 16:01:59,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:01:59,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-01 16:01:59,459 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:01:59,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-01 16:01:59,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:01:59,459 INFO L87 Difference]: Start difference. First operand 32293 states and 125503 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 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 16:02:00,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:02:00,936 INFO L93 Difference]: Finished difference Result 124293 states and 475578 transitions. [2022-03-01 16:02:00,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-01 16:02:00,936 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 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 16:02:00,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:02:01,537 INFO L225 Difference]: With dead ends: 124293 [2022-03-01 16:02:01,537 INFO L226 Difference]: Without dead ends: 124293 [2022-03-01 16:02:01,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2022-03-01 16:02:01,538 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 374 mSDsluCounter, 1228 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 1514 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 16:02:01,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [374 Valid, 1514 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 16:02:01,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124293 states. [2022-03-01 16:02:03,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124293 to 32297. [2022-03-01 16:02:03,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32297 states, 32296 states have (on average 3.8868590537527865) internal successors, (125530), 32296 states have internal predecessors, (125530), 0 states have call successors, (0), 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 16:02:03,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32297 states to 32297 states and 125530 transitions. [2022-03-01 16:02:03,459 INFO L78 Accepts]: Start accepts. Automaton has 32297 states and 125530 transitions. Word has length 133 [2022-03-01 16:02:03,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:02:03,459 INFO L470 AbstractCegarLoop]: Abstraction has 32297 states and 125530 transitions. [2022-03-01 16:02:03,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 0 states have call successors, (0), 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 16:02:03,460 INFO L276 IsEmpty]: Start isEmpty. Operand 32297 states and 125530 transitions. [2022-03-01 16:02:03,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-01 16:02:03,532 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:02:03,532 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:02:03,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-03-01 16:02:03,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-03-01 16:02:03,733 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:02:03,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:02:03,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1964000743, now seen corresponding path program 12 times [2022-03-01 16:02:03,733 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:02:03,733 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157810387] [2022-03-01 16:02:03,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:02:03,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:02:03,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:02:04,120 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:02:04,120 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:02:04,120 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157810387] [2022-03-01 16:02:04,120 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157810387] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:02:04,120 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002745670] [2022-03-01 16:02:04,120 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-01 16:02:04,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:02:04,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:02:04,124 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 16:02:04,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-03-01 16:02:04,236 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-03-01 16:02:04,236 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:02:04,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-01 16:02:04,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:02:04,518 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:02:04,518 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:02:04,827 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:02:04,827 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2002745670] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-01 16:02:04,827 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-01 16:02:04,827 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11, 11] total 24 [2022-03-01 16:02:04,827 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318129737] [2022-03-01 16:02:04,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:02:04,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 16:02:04,828 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:02:04,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 16:02:04,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552 [2022-03-01 16:02:04,828 INFO L87 Difference]: Start difference. First operand 32297 states and 125530 transitions. Second operand has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 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 16:02:05,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:02:05,674 INFO L93 Difference]: Finished difference Result 61240 states and 235632 transitions. [2022-03-01 16:02:05,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-01 16:02:05,679 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 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 16:02:05,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:02:05,935 INFO L225 Difference]: With dead ends: 61240 [2022-03-01 16:02:05,936 INFO L226 Difference]: Without dead ends: 61240 [2022-03-01 16:02:05,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 251 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=259, Invalid=863, Unknown=0, NotChecked=0, Total=1122 [2022-03-01 16:02:05,936 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 544 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:02:05,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [544 Valid, 955 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 16:02:06,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61240 states. [2022-03-01 16:02:06,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61240 to 32114. [2022-03-01 16:02:06,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32114 states, 32113 states have (on average 3.883473982499299) internal successors, (124710), 32113 states have internal predecessors, (124710), 0 states have call successors, (0), 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 16:02:07,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32114 states to 32114 states and 124710 transitions. [2022-03-01 16:02:07,035 INFO L78 Accepts]: Start accepts. Automaton has 32114 states and 124710 transitions. Word has length 133 [2022-03-01 16:02:07,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:02:07,036 INFO L470 AbstractCegarLoop]: Abstraction has 32114 states and 124710 transitions. [2022-03-01 16:02:07,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 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 16:02:07,036 INFO L276 IsEmpty]: Start isEmpty. Operand 32114 states and 124710 transitions. [2022-03-01 16:02:07,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-01 16:02:07,104 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:02:07,104 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:02:07,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-03-01 16:02:07,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:02:07,305 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:02:07,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:02:07,305 INFO L85 PathProgramCache]: Analyzing trace with hash -712119571, now seen corresponding path program 13 times [2022-03-01 16:02:07,305 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:02:07,306 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021664862] [2022-03-01 16:02:07,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:02:07,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:02:07,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:02:07,398 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:02:07,398 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:02:07,398 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021664862] [2022-03-01 16:02:07,398 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021664862] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:02:07,398 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64073762] [2022-03-01 16:02:07,398 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-01 16:02:07,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:02:07,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:02:07,400 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 16:02:07,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-03-01 16:02:07,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:02:07,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-01 16:02:07,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:02:08,027 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:02:08,027 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:02:08,352 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:02:08,353 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [64073762] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-01 16:02:08,353 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-01 16:02:08,353 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11, 11] total 24 [2022-03-01 16:02:08,353 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289514659] [2022-03-01 16:02:08,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:02:08,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 16:02:08,353 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:02:08,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 16:02:08,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=444, Unknown=0, NotChecked=0, Total=552 [2022-03-01 16:02:08,354 INFO L87 Difference]: Start difference. First operand 32114 states and 124710 transitions. Second operand has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 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 16:02:08,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:02:08,780 INFO L93 Difference]: Finished difference Result 45812 states and 175961 transitions. [2022-03-01 16:02:08,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-01 16:02:08,780 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 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 16:02:08,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:02:08,922 INFO L225 Difference]: With dead ends: 45812 [2022-03-01 16:02:08,922 INFO L226 Difference]: Without dead ends: 45812 [2022-03-01 16:02:08,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 251 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=237, Invalid=819, Unknown=0, NotChecked=0, Total=1056 [2022-03-01 16:02:08,923 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 549 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:02:08,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [549 Valid, 833 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 16:02:09,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45812 states. [2022-03-01 16:02:09,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45812 to 31856. [2022-03-01 16:02:09,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31856 states, 31855 states have (on average 3.8778527703657195) internal successors, (123529), 31855 states have internal predecessors, (123529), 0 states have call successors, (0), 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 16:02:10,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31856 states to 31856 states and 123529 transitions. [2022-03-01 16:02:10,077 INFO L78 Accepts]: Start accepts. Automaton has 31856 states and 123529 transitions. Word has length 133 [2022-03-01 16:02:10,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:02:10,077 INFO L470 AbstractCegarLoop]: Abstraction has 31856 states and 123529 transitions. [2022-03-01 16:02:10,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 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 16:02:10,078 INFO L276 IsEmpty]: Start isEmpty. Operand 31856 states and 123529 transitions. [2022-03-01 16:02:10,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-03-01 16:02:10,149 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:02:10,149 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:02:10,167 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-03-01 16:02:10,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:02:10,350 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:02:10,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:02:10,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1914209732, now seen corresponding path program 2 times [2022-03-01 16:02:10,351 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:02:10,351 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000468607] [2022-03-01 16:02:10,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:02:10,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:02:10,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:02:10,424 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:02:10,424 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:02:10,424 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000468607] [2022-03-01 16:02:10,424 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000468607] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:02:10,424 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421167546] [2022-03-01 16:02:10,424 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-01 16:02:10,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:02:10,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:02:10,425 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 16:02:10,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-03-01 16:02:10,522 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-01 16:02:10,522 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:02:10,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-01 16:02:10,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:02:10,800 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:02:10,800 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:02:11,075 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:02:11,075 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421167546] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-01 16:02:11,076 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-01 16:02:11,076 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9, 9] total 19 [2022-03-01 16:02:11,076 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986776895] [2022-03-01 16:02:11,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:02:11,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-01 16:02:11,076 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:02:11,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-01 16:02:11,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2022-03-01 16:02:11,077 INFO L87 Difference]: Start difference. First operand 31856 states and 123529 transitions. Second operand has 9 states, 9 states have (on average 15.11111111111111) internal successors, (136), 9 states have internal predecessors, (136), 0 states have call successors, (0), 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 16:02:11,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:02:11,558 INFO L93 Difference]: Finished difference Result 33648 states and 130445 transitions. [2022-03-01 16:02:11,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 16:02:11,558 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.11111111111111) internal successors, (136), 9 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2022-03-01 16:02:11,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:02:11,672 INFO L225 Difference]: With dead ends: 33648 [2022-03-01 16:02:11,672 INFO L226 Difference]: Without dead ends: 33648 [2022-03-01 16:02:11,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 260 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2022-03-01 16:02:11,673 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 518 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 16:02:11,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [518 Valid, 456 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 16:02:11,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33648 states. [2022-03-01 16:02:12,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33648 to 33648. [2022-03-01 16:02:12,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33648 states, 33647 states have (on average 3.876868665854311) internal successors, (130445), 33647 states have internal predecessors, (130445), 0 states have call successors, (0), 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 16:02:12,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33648 states to 33648 states and 130445 transitions. [2022-03-01 16:02:12,486 INFO L78 Accepts]: Start accepts. Automaton has 33648 states and 130445 transitions. Word has length 136 [2022-03-01 16:02:12,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:02:12,486 INFO L470 AbstractCegarLoop]: Abstraction has 33648 states and 130445 transitions. [2022-03-01 16:02:12,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.11111111111111) internal successors, (136), 9 states have internal predecessors, (136), 0 states have call successors, (0), 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 16:02:12,487 INFO L276 IsEmpty]: Start isEmpty. Operand 33648 states and 130445 transitions. [2022-03-01 16:02:12,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-01 16:02:12,554 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:02:12,554 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:02:12,571 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-03-01 16:02:12,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:02:12,757 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:02:12,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:02:12,758 INFO L85 PathProgramCache]: Analyzing trace with hash -59731478, now seen corresponding path program 1 times [2022-03-01 16:02:12,758 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:02:12,758 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475530781] [2022-03-01 16:02:12,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:02:12,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:02:12,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:02:12,791 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-01 16:02:12,792 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:02:12,792 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475530781] [2022-03-01 16:02:12,792 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475530781] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:02:12,792 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:02:12,792 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-01 16:02:12,792 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764494951] [2022-03-01 16:02:12,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:02:12,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-01 16:02:12,793 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:02:12,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-01 16:02:12,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-01 16:02:12,793 INFO L87 Difference]: Start difference. First operand 33648 states and 130445 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 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 16:02:13,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:02:13,301 INFO L93 Difference]: Finished difference Result 44400 states and 171941 transitions. [2022-03-01 16:02:13,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-01 16:02:13,301 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 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 146 [2022-03-01 16:02:13,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:02:13,440 INFO L225 Difference]: With dead ends: 44400 [2022-03-01 16:02:13,441 INFO L226 Difference]: Without dead ends: 44400 [2022-03-01 16:02:13,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-01 16:02:13,442 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 160 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 16:02:13,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 527 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 16:02:13,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44400 states. [2022-03-01 16:02:14,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44400 to 37232. [2022-03-01 16:02:14,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37232 states, 37231 states have (on average 3.875184657946335) internal successors, (144277), 37231 states have internal predecessors, (144277), 0 states have call successors, (0), 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 16:02:14,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37232 states to 37232 states and 144277 transitions. [2022-03-01 16:02:14,717 INFO L78 Accepts]: Start accepts. Automaton has 37232 states and 144277 transitions. Word has length 146 [2022-03-01 16:02:14,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:02:14,718 INFO L470 AbstractCegarLoop]: Abstraction has 37232 states and 144277 transitions. [2022-03-01 16:02:14,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 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 16:02:14,718 INFO L276 IsEmpty]: Start isEmpty. Operand 37232 states and 144277 transitions. [2022-03-01 16:02:14,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-03-01 16:02:14,793 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:02:14,793 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:02:14,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-01 16:02:14,793 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:02:14,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:02:14,794 INFO L85 PathProgramCache]: Analyzing trace with hash -678018503, now seen corresponding path program 1 times [2022-03-01 16:02:14,794 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:02:14,794 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270057367] [2022-03-01 16:02:14,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:02:14,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:02:14,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:02:17,978 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:02:17,978 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:02:17,978 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270057367] [2022-03-01 16:02:17,978 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270057367] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:02:17,978 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861769385] [2022-03-01 16:02:17,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:02:17,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:02:17,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:02:17,980 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 16:02:17,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-03-01 16:02:18,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:02:18,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 66 conjunts are in the unsatisfiable core [2022-03-01 16:02:18,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:02:18,198 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 16:02:18,470 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-03-01 16:02:18,471 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 16:02:19,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 16:02:19,935 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 43 treesize of output 39 [2022-03-01 16:02:20,326 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2022-03-01 16:02:20,684 INFO L353 Elim1Store]: treesize reduction 49, result has 40.2 percent of original size [2022-03-01 16:02:20,684 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 60 treesize of output 55 [2022-03-01 16:02:22,049 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:02:22,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:02:26,040 INFO L353 Elim1Store]: treesize reduction 50, result has 51.5 percent of original size [2022-03-01 16:02:26,040 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 471 treesize of output 422 [2022-03-01 16:02:26,053 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-03-01 16:02:26,054 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 369 treesize of output 343 [2022-03-01 16:02:26,066 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-03-01 16:02:26,066 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 343 treesize of output 330 [2022-03-01 16:02:26,082 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-03-01 16:02:26,083 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 330 treesize of output 304 [2022-03-01 16:02:26,096 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-03-01 16:02:26,096 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 304 treesize of output 291 [2022-03-01 16:02:26,109 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-03-01 16:02:26,110 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 291 treesize of output 265 [2022-03-01 16:02:26,126 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-03-01 16:02:26,127 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 265 treesize of output 213 [2022-03-01 16:02:29,239 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 16:02:29,317 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:02:29,318 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1861769385] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 16:02:29,318 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 16:02:29,318 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38, 38] total 106 [2022-03-01 16:02:29,318 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757928094] [2022-03-01 16:02:29,318 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 16:02:29,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 106 states [2022-03-01 16:02:29,319 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:02:29,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2022-03-01 16:02:29,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=486, Invalid=10559, Unknown=85, NotChecked=0, Total=11130 [2022-03-01 16:02:29,322 INFO L87 Difference]: Start difference. First operand 37232 states and 144277 transitions. Second operand has 106 states, 106 states have (on average 3.7735849056603774) internal successors, (400), 106 states have internal predecessors, (400), 0 states have call successors, (0), 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 16:04:19,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:04:19,068 INFO L93 Difference]: Finished difference Result 190966 states and 729997 transitions. [2022-03-01 16:04:19,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 251 states. [2022-03-01 16:04:19,069 INFO L78 Accepts]: Start accepts. Automaton has has 106 states, 106 states have (on average 3.7735849056603774) internal successors, (400), 106 states have internal predecessors, (400), 0 states have call successors, (0), 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 149 [2022-03-01 16:04:19,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:04:20,430 INFO L225 Difference]: With dead ends: 190966 [2022-03-01 16:04:20,430 INFO L226 Difference]: Without dead ends: 190816 [2022-03-01 16:04:20,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 595 GetRequests, 234 SyntacticMatches, 12 SemanticMatches, 349 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35289 ImplicationChecksByTransitivity, 99.5s TimeCoverageRelationStatistics Valid=22302, Invalid=100463, Unknown=85, NotChecked=0, Total=122850 [2022-03-01 16:04:20,443 INFO L933 BasicCegarLoop]: 697 mSDtfsCounter, 16641 mSDsluCounter, 30937 mSDsCounter, 0 mSdLazyCounter, 19848 mSolverCounterSat, 456 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16641 SdHoareTripleChecker+Valid, 29820 SdHoareTripleChecker+Invalid, 25208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 456 IncrementalHoareTripleChecker+Valid, 19848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4904 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2022-03-01 16:04:20,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16641 Valid, 29820 Invalid, 25208 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [456 Valid, 19848 Invalid, 0 Unknown, 4904 Unchecked, 12.6s Time] [2022-03-01 16:04:20,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190816 states. [2022-03-01 16:04:23,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190816 to 40754. [2022-03-01 16:04:23,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40754 states, 40753 states have (on average 3.832380438249945) internal successors, (156181), 40753 states have internal predecessors, (156181), 0 states have call successors, (0), 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 16:04:23,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40754 states to 40754 states and 156181 transitions. [2022-03-01 16:04:23,732 INFO L78 Accepts]: Start accepts. Automaton has 40754 states and 156181 transitions. Word has length 149 [2022-03-01 16:04:23,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:04:23,733 INFO L470 AbstractCegarLoop]: Abstraction has 40754 states and 156181 transitions. [2022-03-01 16:04:23,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 106 states, 106 states have (on average 3.7735849056603774) internal successors, (400), 106 states have internal predecessors, (400), 0 states have call successors, (0), 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 16:04:23,733 INFO L276 IsEmpty]: Start isEmpty. Operand 40754 states and 156181 transitions. [2022-03-01 16:04:23,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-03-01 16:04:23,826 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:04:23,827 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:04:23,844 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-03-01 16:04:24,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:04:24,027 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:04:24,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:04:24,028 INFO L85 PathProgramCache]: Analyzing trace with hash 526269236, now seen corresponding path program 1 times [2022-03-01 16:04:24,028 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:04:24,028 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63412954] [2022-03-01 16:04:24,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:04:24,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:04:24,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:04:25,401 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-01 16:04:25,401 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:04:25,401 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63412954] [2022-03-01 16:04:25,401 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63412954] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:04:25,401 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411386073] [2022-03-01 16:04:25,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:04:25,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:04:25,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:04:25,403 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 16:04:25,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-03-01 16:04:25,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:04:25,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 48 conjunts are in the unsatisfiable core [2022-03-01 16:04:25,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:04:26,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 16:04:26,266 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 43 treesize of output 39 [2022-03-01 16:04:26,482 INFO L353 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-03-01 16:04:26,482 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 53 treesize of output 23 [2022-03-01 16:04:26,962 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:04:26,962 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:04:27,979 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse4 (mod c_~sorted1~0 256))) (let ((.cse1 (= .cse4 0))) (and (or (forall ((v_ArrVal_734 (Array Int Int))) (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_734) c_~A~0.base))) (< (select .cse0 c_~A~0.offset) (select .cse0 (+ c_~A~0.offset 4))))) .cse1) (or (forall ((v_ArrVal_734 (Array Int Int))) (not (let ((.cse2 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_734) c_~A~0.base))) (< (select .cse2 c_~A~0.offset) (select .cse2 (+ c_~A~0.offset 4)))))) (let ((.cse3 (= (mod c_~sorted3~0 256) 0))) (and (or .cse3 (= .cse4 1)) (or (not .cse3) .cse1))))))) is different from false [2022-03-01 16:04:28,253 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (= (mod c_~sorted3~0 256) 0)) (.cse0 (< |c_thread1Thread1of1ForFork1_#t~mem2| |c_thread1Thread1of1ForFork1_#t~mem3|))) (and (or (not .cse0) (and (forall ((v_ArrVal_734 (Array Int Int))) (let ((.cse1 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_734) c_~A~0.base))) (< (select .cse1 c_~A~0.offset) (select .cse1 (+ c_~A~0.offset 4))))) (not .cse2))) (or .cse2 (forall ((v_ArrVal_734 (Array Int Int))) (not (let ((.cse3 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_734) c_~A~0.base))) (< (select .cse3 c_~A~0.offset) (select .cse3 (+ c_~A~0.offset 4)))))) .cse0))) is different from false [2022-03-01 16:04:28,405 INFO L353 Elim1Store]: treesize reduction 39, result has 52.4 percent of original size [2022-03-01 16:04:28,405 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 61 treesize of output 76 [2022-03-01 16:04:28,413 INFO L353 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-03-01 16:04:28,414 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 29 treesize of output 23 [2022-03-01 16:04:28,511 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-01 16:04:28,516 INFO L353 Elim1Store]: treesize reduction 81, result has 1.2 percent of original size [2022-03-01 16:04:28,516 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 35 treesize of output 1 [2022-03-01 16:04:29,191 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-01 16:04:29,191 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411386073] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 16:04:29,191 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 16:04:29,191 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 27, 25] total 67 [2022-03-01 16:04:29,192 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438670179] [2022-03-01 16:04:29,192 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 16:04:29,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-03-01 16:04:29,192 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:04:29,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-03-01 16:04:29,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=3858, Unknown=8, NotChecked=254, Total=4422 [2022-03-01 16:04:29,193 INFO L87 Difference]: Start difference. First operand 40754 states and 156181 transitions. Second operand has 67 states, 67 states have (on average 5.358208955223881) internal successors, (359), 67 states have internal predecessors, (359), 0 states have call successors, (0), 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 16:05:11,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:05:11,440 INFO L93 Difference]: Finished difference Result 478104 states and 1818082 transitions. [2022-03-01 16:05:11,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 305 states. [2022-03-01 16:05:11,447 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 5.358208955223881) internal successors, (359), 67 states have internal predecessors, (359), 0 states have call successors, (0), 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 149 [2022-03-01 16:05:11,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:05:15,519 INFO L225 Difference]: With dead ends: 478104 [2022-03-01 16:05:15,519 INFO L226 Difference]: Without dead ends: 477504 [2022-03-01 16:05:15,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 691 GetRequests, 268 SyntacticMatches, 74 SemanticMatches, 349 ConstructedPredicates, 2 IntricatePredicates, 8 DeprecatedPredicates, 59240 ImplicationChecksByTransitivity, 29.8s TimeCoverageRelationStatistics Valid=15859, Invalid=105593, Unknown=8, NotChecked=1390, Total=122850 [2022-03-01 16:05:15,529 INFO L933 BasicCegarLoop]: 821 mSDtfsCounter, 12442 mSDsluCounter, 32834 mSDsCounter, 0 mSdLazyCounter, 13677 mSolverCounterSat, 476 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12442 SdHoareTripleChecker+Valid, 31159 SdHoareTripleChecker+Invalid, 19203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 476 IncrementalHoareTripleChecker+Valid, 13677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5050 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-03-01 16:05:15,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12442 Valid, 31159 Invalid, 19203 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [476 Valid, 13677 Invalid, 0 Unknown, 5050 Unchecked, 6.5s Time] [2022-03-01 16:05:16,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477504 states. [2022-03-01 16:05:26,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477504 to 65802. [2022-03-01 16:05:26,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65802 states, 65801 states have (on average 3.8860351666388047) internal successors, (255705), 65801 states have internal predecessors, (255705), 0 states have call successors, (0), 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 16:05:27,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65802 states to 65802 states and 255705 transitions. [2022-03-01 16:05:27,900 INFO L78 Accepts]: Start accepts. Automaton has 65802 states and 255705 transitions. Word has length 149 [2022-03-01 16:05:27,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:05:27,900 INFO L470 AbstractCegarLoop]: Abstraction has 65802 states and 255705 transitions. [2022-03-01 16:05:27,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 5.358208955223881) internal successors, (359), 67 states have internal predecessors, (359), 0 states have call successors, (0), 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 16:05:27,901 INFO L276 IsEmpty]: Start isEmpty. Operand 65802 states and 255705 transitions. [2022-03-01 16:05:28,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-03-01 16:05:28,089 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:05:28,089 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:05:28,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-03-01 16:05:28,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:05:28,291 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:05:28,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:05:28,291 INFO L85 PathProgramCache]: Analyzing trace with hash 914878770, now seen corresponding path program 2 times [2022-03-01 16:05:28,292 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:05:28,292 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233961033] [2022-03-01 16:05:28,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:05:28,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:05:28,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:05:29,703 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-01 16:05:29,703 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:05:29,703 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233961033] [2022-03-01 16:05:29,703 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233961033] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:05:29,703 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299437824] [2022-03-01 16:05:29,704 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-01 16:05:29,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:05:29,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:05:29,705 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 16:05:29,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-03-01 16:05:29,905 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-01 16:05:29,905 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:05:29,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 54 conjunts are in the unsatisfiable core [2022-03-01 16:05:29,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:05:30,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 16:05:30,986 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 43 treesize of output 39 [2022-03-01 16:05:31,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 16:05:31,324 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 54 treesize of output 48 [2022-03-01 16:05:31,532 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-01 16:05:31,533 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 1 case distinctions, treesize of input 47 treesize of output 23 [2022-03-01 16:05:31,977 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:05:31,978 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:05:32,656 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (mod c_~sorted1~0 256))) (let ((.cse0 (= .cse2 0))) (and (or .cse0 (forall ((v_ArrVal_772 (Array Int Int))) (< |c_thread2Thread1of1ForFork2_#t~mem6| (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_772) c_~A~0.base) (+ c_~A~0.offset 4 (* c_thread2Thread1of1ForFork2_~i~1 4)))))) (or (forall ((v_ArrVal_772 (Array Int Int))) (not (< |c_thread2Thread1of1ForFork2_#t~mem6| (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_772) c_~A~0.base) (+ c_~A~0.offset 4 (* c_thread2Thread1of1ForFork2_~i~1 4)))))) (let ((.cse1 (= (mod c_~sorted3~0 256) 0))) (and (or .cse1 (= .cse2 1)) (or (not .cse1) .cse0))))))) is different from false [2022-03-01 16:05:32,739 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse4 (mod c_~sorted1~0 256))) (let ((.cse1 (= .cse4 0))) (and (or (forall ((v_ArrVal_772 (Array Int Int))) (let ((.cse0 (* c_thread2Thread1of1ForFork2_~i~1 4))) (< (select (select |c_#memory_int| c_~A~0.base) (+ c_~A~0.offset .cse0)) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_772) c_~A~0.base) (+ c_~A~0.offset 4 .cse0))))) .cse1) (or (forall ((v_ArrVal_772 (Array Int Int))) (not (let ((.cse2 (* c_thread2Thread1of1ForFork2_~i~1 4))) (< (select (select |c_#memory_int| c_~A~0.base) (+ c_~A~0.offset .cse2)) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_772) c_~A~0.base) (+ c_~A~0.offset 4 .cse2)))))) (let ((.cse3 (= (mod c_~sorted3~0 256) 0))) (and (or .cse3 (= .cse4 1)) (or (not .cse3) .cse1))))))) is different from false [2022-03-01 16:05:33,287 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (= (mod c_~sorted3~0 256) 0)) (.cse2 (< |c_thread1Thread1of1ForFork1_#t~mem2| |c_thread1Thread1of1ForFork1_#t~mem3|))) (and (or (and (forall ((v_ArrVal_771 (Array Int Int)) (v_ArrVal_772 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_771))) (< (select (select .cse0 c_~A~0.base) c_~A~0.offset) (select (select (store .cse0 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_772) c_~A~0.base) (+ c_~A~0.offset 4))))) (not .cse1)) (not .cse2)) (or .cse1 (forall ((v_ArrVal_771 (Array Int Int)) (v_ArrVal_772 (Array Int Int))) (not (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_771))) (< (select (select .cse3 c_~A~0.base) c_~A~0.offset) (select (select (store .cse3 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_772) c_~A~0.base) (+ c_~A~0.offset 4)))))) .cse2))) is different from false [2022-03-01 16:05:33,424 INFO L353 Elim1Store]: treesize reduction 39, result has 52.4 percent of original size [2022-03-01 16:05:33,425 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 183 treesize of output 180 [2022-03-01 16:05:33,434 INFO L353 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-03-01 16:05:33,434 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 134 treesize of output 118 [2022-03-01 16:05:33,439 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 102 [2022-03-01 16:05:33,604 INFO L353 Elim1Store]: treesize reduction 39, result has 52.4 percent of original size [2022-03-01 16:05:33,605 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 183 treesize of output 180 [2022-03-01 16:05:33,614 INFO L353 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-03-01 16:05:33,615 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 133 treesize of output 117 [2022-03-01 16:05:33,620 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 117 treesize of output 101 [2022-03-01 16:05:34,523 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 1 not checked. [2022-03-01 16:05:34,523 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1299437824] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 16:05:34,523 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 16:05:34,523 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 29, 27] total 72 [2022-03-01 16:05:34,523 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793040179] [2022-03-01 16:05:34,524 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 16:05:34,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2022-03-01 16:05:34,524 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:05:34,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2022-03-01 16:05:34,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=354, Invalid=4327, Unknown=23, NotChecked=408, Total=5112 [2022-03-01 16:05:34,525 INFO L87 Difference]: Start difference. First operand 65802 states and 255705 transitions. Second operand has 72 states, 72 states have (on average 4.986111111111111) internal successors, (359), 72 states have internal predecessors, (359), 0 states have call successors, (0), 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 16:06:04,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:06:04,072 INFO L93 Difference]: Finished difference Result 518388 states and 1987877 transitions. [2022-03-01 16:06:04,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 187 states. [2022-03-01 16:06:04,072 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 72 states have (on average 4.986111111111111) internal successors, (359), 72 states have internal predecessors, (359), 0 states have call successors, (0), 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 149 [2022-03-01 16:06:04,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:06:08,496 INFO L225 Difference]: With dead ends: 518388 [2022-03-01 16:06:08,496 INFO L226 Difference]: Without dead ends: 517638 [2022-03-01 16:06:08,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 531 GetRequests, 259 SyntacticMatches, 27 SemanticMatches, 245 ConstructedPredicates, 3 IntricatePredicates, 3 DeprecatedPredicates, 23381 ImplicationChecksByTransitivity, 18.3s TimeCoverageRelationStatistics Valid=8059, Invalid=51216, Unknown=29, NotChecked=1458, Total=60762 [2022-03-01 16:06:08,499 INFO L933 BasicCegarLoop]: 1044 mSDtfsCounter, 8927 mSDsluCounter, 29819 mSDsCounter, 0 mSdLazyCounter, 11593 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8927 SdHoareTripleChecker+Valid, 28563 SdHoareTripleChecker+Invalid, 19819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 11593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8004 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-01 16:06:08,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8927 Valid, 28563 Invalid, 19819 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [222 Valid, 11593 Invalid, 0 Unknown, 8004 Unchecked, 5.8s Time] [2022-03-01 16:06:09,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517638 states. [2022-03-01 16:06:20,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517638 to 72384. [2022-03-01 16:06:20,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72384 states, 72383 states have (on average 3.8819612339914067) internal successors, (280988), 72383 states have internal predecessors, (280988), 0 states have call successors, (0), 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 16:06:21,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72384 states to 72384 states and 280988 transitions. [2022-03-01 16:06:21,320 INFO L78 Accepts]: Start accepts. Automaton has 72384 states and 280988 transitions. Word has length 149 [2022-03-01 16:06:21,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:06:21,320 INFO L470 AbstractCegarLoop]: Abstraction has 72384 states and 280988 transitions. [2022-03-01 16:06:21,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 72 states have (on average 4.986111111111111) internal successors, (359), 72 states have internal predecessors, (359), 0 states have call successors, (0), 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 16:06:21,320 INFO L276 IsEmpty]: Start isEmpty. Operand 72384 states and 280988 transitions. [2022-03-01 16:06:21,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-03-01 16:06:21,493 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:06:21,493 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:06:21,510 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-03-01 16:06:21,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:06:21,694 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:06:21,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:06:21,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1579747311, now seen corresponding path program 2 times [2022-03-01 16:06:21,694 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:06:21,694 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399747166] [2022-03-01 16:06:21,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:06:21,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:06:21,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:06:24,036 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-01 16:06:24,036 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:06:24,036 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399747166] [2022-03-01 16:06:24,036 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399747166] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:06:24,036 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503565281] [2022-03-01 16:06:24,036 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-01 16:06:24,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:06:24,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:06:24,038 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 16:06:24,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-03-01 16:06:24,268 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-01 16:06:24,268 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:06:24,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 70 conjunts are in the unsatisfiable core [2022-03-01 16:06:24,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:06:24,294 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 16:06:24,324 INFO L353 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-03-01 16:06:24,325 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 16:06:24,581 INFO L353 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-03-01 16:06:24,582 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 16 treesize of output 18 [2022-03-01 16:06:25,924 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 43 treesize of output 39 [2022-03-01 16:06:26,213 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 43 treesize of output 39 [2022-03-01 16:06:26,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 16:06:26,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-01 16:06:26,800 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-01 16:06:26,801 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 57 treesize of output 61 [2022-03-01 16:06:28,176 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:06:28,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:06:30,824 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_thread3Thread1of1ForFork0_~i~2_47 Int)) (or (< 0 v_thread3Thread1of1ForFork0_~i~2_47) (< (+ 2 v_thread3Thread1of1ForFork0_~i~2_47) c_~N~0) (let ((.cse1 (= (mod c_~sorted2~0 256) 0)) (.cse0 (forall ((v_ArrVal_812 (Array Int Int)) (v_ArrVal_811 (Array Int Int))) (not (let ((.cse4 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_811) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_812) c_~A~0.base)) (.cse5 (* 4 v_thread3Thread1of1ForFork0_~i~2_47))) (< (select .cse4 (+ .cse5 c_~A~0.offset)) (select .cse4 (+ .cse5 c_~A~0.offset 4)))))))) (and (or |c_thread1Thread1of1ForFork1_#t~short4| .cse0 .cse1) (or (not |c_thread1Thread1of1ForFork1_#t~short4|) (and (or (not .cse1) .cse0) (forall ((v_ArrVal_812 (Array Int Int)) (v_ArrVal_811 (Array Int Int))) (let ((.cse2 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_811) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_812) c_~A~0.base)) (.cse3 (* 4 v_thread3Thread1of1ForFork0_~i~2_47))) (< (select .cse2 (+ .cse3 c_~A~0.offset)) (select .cse2 (+ .cse3 c_~A~0.offset 4))))))))))) is different from false [2022-03-01 16:06:30,942 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_thread3Thread1of1ForFork0_~i~2_47 Int)) (or (< 0 v_thread3Thread1of1ForFork0_~i~2_47) (< (+ 2 v_thread3Thread1of1ForFork0_~i~2_47) c_~N~0) (let ((.cse4 (< |c_thread1Thread1of1ForFork1_#t~mem2| |c_thread1Thread1of1ForFork1_#t~mem3|)) (.cse1 (forall ((v_ArrVal_812 (Array Int Int)) (v_ArrVal_811 (Array Int Int))) (not (let ((.cse5 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_811) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_812) c_~A~0.base)) (.cse6 (* 4 v_thread3Thread1of1ForFork0_~i~2_47))) (< (select .cse5 (+ .cse6 c_~A~0.offset)) (select .cse5 (+ .cse6 c_~A~0.offset 4))))))) (.cse0 (= (mod c_~sorted2~0 256) 0))) (and (or (and (or (not .cse0) .cse1) (forall ((v_ArrVal_812 (Array Int Int)) (v_ArrVal_811 (Array Int Int))) (let ((.cse2 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_811) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_812) c_~A~0.base)) (.cse3 (* 4 v_thread3Thread1of1ForFork0_~i~2_47))) (< (select .cse2 (+ .cse3 c_~A~0.offset)) (select .cse2 (+ .cse3 c_~A~0.offset 4)))))) (not .cse4)) (or .cse4 .cse1 .cse0))))) is different from false [2022-03-01 16:06:31,219 INFO L353 Elim1Store]: treesize reduction 50, result has 51.5 percent of original size [2022-03-01 16:06:31,220 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 691 treesize of output 608 [2022-03-01 16:06:31,230 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-03-01 16:06:31,231 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 555 treesize of output 529 [2022-03-01 16:06:31,241 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-03-01 16:06:31,242 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 529 treesize of output 477 [2022-03-01 16:06:31,254 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-03-01 16:06:31,255 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 477 treesize of output 451 [2022-03-01 16:06:31,264 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-03-01 16:06:31,265 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 451 treesize of output 399 [2022-03-01 16:06:31,276 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-03-01 16:06:31,277 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 399 treesize of output 347 [2022-03-01 16:06:31,301 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-03-01 16:06:31,301 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 347 treesize of output 321 [2022-03-01 16:06:33,898 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:06:33,898 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1503565281] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 16:06:33,899 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 16:06:33,899 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 38, 38] total 95 [2022-03-01 16:06:33,899 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262916903] [2022-03-01 16:06:33,899 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 16:06:33,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-03-01 16:06:33,899 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:06:33,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-03-01 16:06:33,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=457, Invalid=8086, Unknown=21, NotChecked=366, Total=8930 [2022-03-01 16:06:33,901 INFO L87 Difference]: Start difference. First operand 72384 states and 280988 transitions. Second operand has 95 states, 95 states have (on average 4.094736842105263) internal successors, (389), 95 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2022-03-01 16:12:48,829 WARN L244 SmtUtils]: Removed 3 from assertion stack [2022-03-01 16:12:48,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 857 states. [2022-03-01 16:12:48,839 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 16:12:48,839 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-01 16:12:48,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1455 GetRequests, 344 SyntacticMatches, 164 SemanticMatches, 946 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 438734 ImplicationChecksByTransitivity, 352.3s TimeCoverageRelationStatistics Valid=99231, Invalid=794726, Unknown=21, NotChecked=3778, Total=897756 [2022-03-01 16:12:48,887 INFO L933 BasicCegarLoop]: 1185 mSDtfsCounter, 16594 mSDsluCounter, 37483 mSDsCounter, 0 mSdLazyCounter, 22929 mSolverCounterSat, 489 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16594 SdHoareTripleChecker+Valid, 37082 SdHoareTripleChecker+Invalid, 38893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 489 IncrementalHoareTripleChecker+Valid, 22929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 15475 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2022-03-01 16:12:48,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16594 Valid, 37082 Invalid, 38893 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [489 Valid, 22929 Invalid, 0 Unknown, 15475 Unchecked, 13.8s Time] [2022-03-01 16:12:48,888 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-03-01 16:12:48,905 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2022-03-01 16:12:49,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-03-01 16:12:49,090 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (72384states) and FLOYD_HOARE automaton (currently 857 states, 95 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 148 for 6ms.. [2022-03-01 16:12:49,091 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-01 16:12:49,091 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-01 16:12:49,091 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-01 16:12:49,093 INFO L732 BasicCegarLoop]: Path program histogram: [13, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:12:49,094 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-01 16:12:49,094 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-01 16:12:49,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.03 04:12:49 BasicIcfg [2022-03-01 16:12:49,096 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-01 16:12:49,096 INFO L158 Benchmark]: Toolchain (without parser) took 712917.81ms. Allocated memory was 176.2MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 117.7MB in the beginning and 6.5GB in the end (delta: -6.4GB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2022-03-01 16:12:49,096 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 176.2MB. Free memory is still 133.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-01 16:12:49,096 INFO L158 Benchmark]: CACSL2BoogieTranslator took 358.98ms. Allocated memory was 176.2MB in the beginning and 254.8MB in the end (delta: 78.6MB). Free memory was 117.6MB in the beginning and 224.7MB in the end (delta: -107.2MB). Peak memory consumption was 13.3MB. Max. memory is 8.0GB. [2022-03-01 16:12:49,097 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.99ms. Allocated memory is still 254.8MB. Free memory was 224.7MB in the beginning and 222.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-01 16:12:49,097 INFO L158 Benchmark]: Boogie Preprocessor took 22.39ms. Allocated memory is still 254.8MB. Free memory was 222.6MB in the beginning and 221.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-01 16:12:49,097 INFO L158 Benchmark]: RCFGBuilder took 524.08ms. Allocated memory is still 254.8MB. Free memory was 221.1MB in the beginning and 204.8MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2022-03-01 16:12:49,097 INFO L158 Benchmark]: TraceAbstraction took 711976.04ms. Allocated memory was 254.8MB in the beginning and 8.0GB in the end (delta: 7.7GB). Free memory was 204.3MB in the beginning and 6.5GB in the end (delta: -6.3GB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2022-03-01 16:12:49,098 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 176.2MB. Free memory is still 133.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 358.98ms. Allocated memory was 176.2MB in the beginning and 254.8MB in the end (delta: 78.6MB). Free memory was 117.6MB in the beginning and 224.7MB in the end (delta: -107.2MB). Peak memory consumption was 13.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.99ms. Allocated memory is still 254.8MB. Free memory was 224.7MB in the beginning and 222.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 22.39ms. Allocated memory is still 254.8MB. Free memory was 222.6MB in the beginning and 221.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 524.08ms. Allocated memory is still 254.8MB. Free memory was 221.1MB in the beginning and 204.8MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 711976.04ms. Allocated memory was 254.8MB in the beginning and 8.0GB in the end (delta: 7.7GB). Free memory was 204.3MB in the beginning and 6.5GB in the end (delta: -6.3GB). Peak memory consumption was 1.5GB. 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: 92]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (72384states) and FLOYD_HOARE automaton (currently 857 states, 95 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 148 for 6ms.. - TimeoutResultAtElement [Line: 84]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (72384states) and FLOYD_HOARE automaton (currently 857 states, 95 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 148 for 6ms.. - TimeoutResultAtElement [Line: 85]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (72384states) and FLOYD_HOARE automaton (currently 857 states, 95 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 148 for 6ms.. - TimeoutResultAtElement [Line: 86]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (72384states) and FLOYD_HOARE automaton (currently 857 states, 95 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 148 for 6ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 224 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 711.8s, OverallIterations: 26, TraceHistogramMax: 2, PathProgramHistogramMax: 13, EmptinessCheckTime: 3.7s, AutomataDifference: 592.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.8s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 68251 SdHoareTripleChecker+Valid, 41.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 68251 mSDsluCounter, 149056 SdHoareTripleChecker+Invalid, 34.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 33433 IncrementalHoareTripleChecker+Unchecked, 148805 mSDsCounter, 1778 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 72639 IncrementalHoareTripleChecker+Invalid, 107850 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1778 mSolverCounterUnsat, 9134 mSDtfsCounter, 72639 mSolverCounterSat, 0.6s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7027 GetRequests, 4383 SyntacticMatches, 295 SemanticMatches, 2348 ConstructedPredicates, 7 IntricatePredicates, 11 DeprecatedPredicates, 559680 ImplicationChecksByTransitivity, 504.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72384occurred in iteration=25, InterpolantAutomatonStates: 979, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 58.1s AutomataMinimizationTime, 25 MinimizatonAttempts, 1719053 StatesRemovedByMinimization, 23 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 49.0s InterpolantComputationTime, 6156 NumberOfCodeBlocks, 6118 NumberOfCodeBlocksAsserted, 61 NumberOfCheckSat, 8010 ConstructedInterpolants, 104 QuantifiedInterpolants, 68745 SizeOfPredicates, 277 NumberOfNonLiveVariables, 6048 ConjunctsInSsa, 376 ConjunctsInUnsatCore, 60 InterpolantComputations, 19 PerfectInterpolantSequences, 249/496 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