/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 17:16:15,943 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 17:16:15,946 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 17:16:15,999 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 17:16:16,000 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 17:16:16,001 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 17:16:16,003 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 17:16:16,005 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 17:16:16,007 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 17:16:16,008 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 17:16:16,010 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 17:16:16,011 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 17:16:16,012 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 17:16:16,013 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 17:16:16,014 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 17:16:16,016 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 17:16:16,017 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 17:16:16,018 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 17:16:16,020 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 17:16:16,022 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 17:16:16,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 17:16:16,026 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 17:16:16,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 17:16:16,028 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 17:16:16,035 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-09 17:16:16,035 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-09 17:16:16,035 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-09 17:16:16,036 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-09 17:16:16,037 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-09 17:16:16,038 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-09 17:16:16,038 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 17:16:16,039 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 17:16:16,040 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 17:16:16,041 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 17:16:16,042 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 17:16:16,043 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 17:16:16,044 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 17:16:16,044 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 17:16:16,044 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 17:16:16,045 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 17:16:16,046 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 17:16:16,047 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf [2020-11-09 17:16:16,075 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 17:16:16,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 17:16:16,078 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 17:16:16,079 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 17:16:16,079 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 17:16:16,079 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 17:16:16,080 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 17:16:16,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 17:16:16,080 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 17:16:16,080 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 17:16:16,080 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 17:16:16,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 17:16:16,083 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 17:16:16,083 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 17:16:16,083 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 17:16:16,084 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 17:16:16,084 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 17:16:16,084 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 17:16:16,084 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 17:16:16,084 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 17:16:16,085 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 17:16:16,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 17:16:16,085 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 17:16:16,085 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 17:16:16,085 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 17:16:16,086 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 17:16:16,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 17:16:16,089 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 17:16:16,089 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 17:16:16,089 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 17:16:16,089 INFO L138 SettingsManager]: * Interpolant automaton=MCR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 17:16:16,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 17:16:16,571 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 17:16:16,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 17:16:16,575 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 17:16:16,576 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 17:16:16,577 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2020-11-09 17:16:16,690 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57b25dabf/9b5c328bfdec4835b5c97349c3d7d5e2/FLAGf0cc8da99 [2020-11-09 17:16:17,527 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 17:16:17,528 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2020-11-09 17:16:17,554 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57b25dabf/9b5c328bfdec4835b5c97349c3d7d5e2/FLAGf0cc8da99 [2020-11-09 17:16:17,811 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57b25dabf/9b5c328bfdec4835b5c97349c3d7d5e2 [2020-11-09 17:16:17,814 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 17:16:17,822 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 17:16:17,827 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 17:16:17,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 17:16:17,831 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 17:16:17,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:16:17" (1/1) ... [2020-11-09 17:16:17,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b609cf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:17, skipping insertion in model container [2020-11-09 17:16:17,838 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:16:17" (1/1) ... [2020-11-09 17:16:17,847 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 17:16:17,929 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 17:16:18,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:16:18,416 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 17:16:18,464 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:16:18,571 INFO L208 MainTranslator]: Completed translation [2020-11-09 17:16:18,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:18 WrapperNode [2020-11-09 17:16:18,572 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 17:16:18,573 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 17:16:18,573 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 17:16:18,573 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 17:16:18,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:18" (1/1) ... [2020-11-09 17:16:18,598 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:18" (1/1) ... [2020-11-09 17:16:18,621 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 17:16:18,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 17:16:18,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 17:16:18,623 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 17:16:18,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:18" (1/1) ... [2020-11-09 17:16:18,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:18" (1/1) ... [2020-11-09 17:16:18,636 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:18" (1/1) ... [2020-11-09 17:16:18,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:18" (1/1) ... [2020-11-09 17:16:18,642 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:18" (1/1) ... [2020-11-09 17:16:18,645 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:18" (1/1) ... [2020-11-09 17:16:18,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:18" (1/1) ... [2020-11-09 17:16:18,650 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 17:16:18,652 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 17:16:18,652 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 17:16:18,652 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 17:16:18,653 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 17:16:18,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 17:16:18,734 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 17:16:18,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 17:16:18,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 17:16:18,734 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 17:16:18,734 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 17:16:18,735 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 17:16:18,735 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 17:16:18,735 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 17:16:18,735 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 17:16:18,735 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-11-09 17:16:18,735 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-11-09 17:16:18,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 17:16:18,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 17:16:18,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 17:16:18,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 17:16:18,738 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 17:16:19,175 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 17:16:19,176 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 17:16:19,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:16:19 BoogieIcfgContainer [2020-11-09 17:16:19,179 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 17:16:19,181 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 17:16:19,181 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 17:16:19,185 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 17:16:19,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:16:17" (1/3) ... [2020-11-09 17:16:19,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a3676ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:16:19, skipping insertion in model container [2020-11-09 17:16:19,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:18" (2/3) ... [2020-11-09 17:16:19,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a3676ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:16:19, skipping insertion in model container [2020-11-09 17:16:19,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:16:19" (3/3) ... [2020-11-09 17:16:19,189 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_tso.oepc.i [2020-11-09 17:16:19,207 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 17:16:19,207 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 17:16:19,212 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 17:16:19,213 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 17:16:19,248 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,249 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,249 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,249 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,249 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,250 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,250 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,250 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,250 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,251 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,251 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,251 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,252 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,252 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,252 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,252 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,253 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,253 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,253 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,253 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,254 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,254 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,254 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,254 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,255 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,255 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,255 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,255 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,256 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,256 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,256 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,256 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,257 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,257 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,257 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,257 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,258 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,258 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,258 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,258 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,259 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,259 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,259 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,259 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,260 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,260 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,260 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,260 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,263 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,263 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,264 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,264 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,271 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,271 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,272 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,272 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,274 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,274 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,275 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,275 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,277 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,277 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,278 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,278 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:16:19,280 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 17:16:19,293 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-09 17:16:19,317 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 17:16:19,317 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 17:16:19,317 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 17:16:19,318 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 17:16:19,318 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 17:16:19,318 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 17:16:19,318 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 17:16:19,318 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 17:16:19,333 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 17:16:19,334 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 95 transitions, 210 flow [2020-11-09 17:16:19,337 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 95 transitions, 210 flow [2020-11-09 17:16:19,339 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 105 places, 95 transitions, 210 flow [2020-11-09 17:16:19,409 INFO L129 PetriNetUnfolder]: 3/91 cut-off events. [2020-11-09 17:16:19,409 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 17:16:19,415 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 91 events. 3/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 74 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2020-11-09 17:16:19,419 INFO L116 LiptonReduction]: Number of co-enabled transitions 2256 [2020-11-09 17:16:22,236 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-11-09 17:16:22,397 WARN L194 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-11-09 17:16:23,225 WARN L194 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2020-11-09 17:16:23,363 WARN L194 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-11-09 17:16:23,679 WARN L194 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2020-11-09 17:16:23,825 WARN L194 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-11-09 17:16:23,854 INFO L131 LiptonReduction]: Checked pairs total: 4418 [2020-11-09 17:16:23,854 INFO L133 LiptonReduction]: Total number of compositions: 80 [2020-11-09 17:16:23,861 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 29 transitions, 78 flow [2020-11-09 17:16:23,964 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1450 states. [2020-11-09 17:16:23,966 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states. [2020-11-09 17:16:23,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 17:16:23,976 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:16:23,977 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:16:23,977 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:16:23,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:16:23,983 INFO L82 PathProgramCache]: Analyzing trace with hash 481695671, now seen corresponding path program 1 times [2020-11-09 17:16:24,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:16:24,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621539093] [2020-11-09 17:16:24,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:16:24,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:16:24,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:16:24,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621539093] [2020-11-09 17:16:24,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:16:24,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:16:24,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2039027352] [2020-11-09 17:16:24,252 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:16:24,255 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:16:24,270 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-11-09 17:16:24,270 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:16:24,274 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:16:24,275 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-09 17:16:24,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:16:24,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-09 17:16:24,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 17:16:24,293 INFO L87 Difference]: Start difference. First operand 1450 states. Second operand 2 states. [2020-11-09 17:16:24,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:16:24,345 INFO L93 Difference]: Finished difference Result 1450 states and 5376 transitions. [2020-11-09 17:16:24,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-09 17:16:24,346 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-09 17:16:24,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:16:24,397 INFO L225 Difference]: With dead ends: 1450 [2020-11-09 17:16:24,397 INFO L226 Difference]: Without dead ends: 1194 [2020-11-09 17:16:24,399 INFO L677 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 [2020-11-09 17:16:24,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2020-11-09 17:16:24,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1194. [2020-11-09 17:16:24,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2020-11-09 17:16:24,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 4352 transitions. [2020-11-09 17:16:24,577 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 4352 transitions. Word has length 10 [2020-11-09 17:16:24,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:16:24,578 INFO L481 AbstractCegarLoop]: Abstraction has 1194 states and 4352 transitions. [2020-11-09 17:16:24,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-09 17:16:24,578 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 4352 transitions. [2020-11-09 17:16:24,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 17:16:24,590 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:16:24,590 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:16:24,590 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 17:16:24,591 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:16:24,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:16:24,597 INFO L82 PathProgramCache]: Analyzing trace with hash 2047662136, now seen corresponding path program 1 times [2020-11-09 17:16:24,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:16:24,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520311158] [2020-11-09 17:16:24,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:16:24,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:16:24,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:16:24,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520311158] [2020-11-09 17:16:24,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:16:24,789 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:16:24,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1393678841] [2020-11-09 17:16:24,789 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:16:24,790 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:16:24,792 INFO L252 McrAutomatonBuilder]: Finished intersection with 12 states and 11 transitions. [2020-11-09 17:16:24,792 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:16:24,793 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:16:24,794 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:16:24,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:16:24,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:16:24,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:16:24,795 INFO L87 Difference]: Start difference. First operand 1194 states and 4352 transitions. Second operand 4 states. [2020-11-09 17:16:24,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:16:24,850 INFO L93 Difference]: Finished difference Result 1322 states and 4640 transitions. [2020-11-09 17:16:24,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:16:24,851 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-09 17:16:24,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:16:24,861 INFO L225 Difference]: With dead ends: 1322 [2020-11-09 17:16:24,862 INFO L226 Difference]: Without dead ends: 1066 [2020-11-09 17:16:24,862 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:16:24,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2020-11-09 17:16:24,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2020-11-09 17:16:24,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2020-11-09 17:16:24,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 3808 transitions. [2020-11-09 17:16:24,914 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 3808 transitions. Word has length 11 [2020-11-09 17:16:24,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:16:24,914 INFO L481 AbstractCegarLoop]: Abstraction has 1066 states and 3808 transitions. [2020-11-09 17:16:24,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:16:24,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 3808 transitions. [2020-11-09 17:16:24,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 17:16:24,916 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:16:24,917 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:16:24,917 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 17:16:24,917 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:16:24,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:16:24,918 INFO L82 PathProgramCache]: Analyzing trace with hash -947021519, now seen corresponding path program 1 times [2020-11-09 17:16:24,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:16:24,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121752648] [2020-11-09 17:16:24,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:16:24,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:16:25,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:16:25,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121752648] [2020-11-09 17:16:25,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:16:25,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:16:25,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [946516679] [2020-11-09 17:16:25,010 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:16:25,011 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:16:25,014 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 26 transitions. [2020-11-09 17:16:25,015 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:16:25,116 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:16:25,116 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:16:25,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:16:25,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:16:25,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:16:25,118 INFO L87 Difference]: Start difference. First operand 1066 states and 3808 transitions. Second operand 4 states. [2020-11-09 17:16:25,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:16:25,181 INFO L93 Difference]: Finished difference Result 1162 states and 4016 transitions. [2020-11-09 17:16:25,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:16:25,181 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-09 17:16:25,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:16:25,191 INFO L225 Difference]: With dead ends: 1162 [2020-11-09 17:16:25,191 INFO L226 Difference]: Without dead ends: 970 [2020-11-09 17:16:25,192 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:16:25,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2020-11-09 17:16:25,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 970. [2020-11-09 17:16:25,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 970 states. [2020-11-09 17:16:25,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 3408 transitions. [2020-11-09 17:16:25,238 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 3408 transitions. Word has length 12 [2020-11-09 17:16:25,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:16:25,239 INFO L481 AbstractCegarLoop]: Abstraction has 970 states and 3408 transitions. [2020-11-09 17:16:25,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:16:25,239 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 3408 transitions. [2020-11-09 17:16:25,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 17:16:25,241 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:16:25,241 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:16:25,241 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 17:16:25,242 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:16:25,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:16:25,248 INFO L82 PathProgramCache]: Analyzing trace with hash 639493830, now seen corresponding path program 1 times [2020-11-09 17:16:25,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:16:25,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172172188] [2020-11-09 17:16:25,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:16:25,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:16:25,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:16:25,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172172188] [2020-11-09 17:16:25,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:16:25,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:16:25,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [668554782] [2020-11-09 17:16:25,357 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:16:25,358 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:16:25,362 INFO L252 McrAutomatonBuilder]: Finished intersection with 28 states and 44 transitions. [2020-11-09 17:16:25,362 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:16:25,443 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:16:25,443 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:16:25,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:16:25,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:16:25,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:16:25,445 INFO L87 Difference]: Start difference. First operand 970 states and 3408 transitions. Second operand 4 states. [2020-11-09 17:16:25,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:16:25,488 INFO L93 Difference]: Finished difference Result 1042 states and 3558 transitions. [2020-11-09 17:16:25,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:16:25,489 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-09 17:16:25,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:16:25,497 INFO L225 Difference]: With dead ends: 1042 [2020-11-09 17:16:25,497 INFO L226 Difference]: Without dead ends: 898 [2020-11-09 17:16:25,498 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:16:25,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2020-11-09 17:16:25,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 898. [2020-11-09 17:16:25,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 898 states. [2020-11-09 17:16:25,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 3114 transitions. [2020-11-09 17:16:25,566 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 3114 transitions. Word has length 13 [2020-11-09 17:16:25,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:16:25,567 INFO L481 AbstractCegarLoop]: Abstraction has 898 states and 3114 transitions. [2020-11-09 17:16:25,567 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:16:25,567 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 3114 transitions. [2020-11-09 17:16:25,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 17:16:25,570 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:16:25,570 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:16:25,570 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 17:16:25,570 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:16:25,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:16:25,571 INFO L82 PathProgramCache]: Analyzing trace with hash -1650268135, now seen corresponding path program 1 times [2020-11-09 17:16:25,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:16:25,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525968852] [2020-11-09 17:16:25,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:16:25,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:16:25,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:16:25,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525968852] [2020-11-09 17:16:25,665 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:16:25,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:16:25,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1464881038] [2020-11-09 17:16:25,665 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:16:25,668 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:16:25,674 INFO L252 McrAutomatonBuilder]: Finished intersection with 36 states and 64 transitions. [2020-11-09 17:16:25,674 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:16:25,793 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:16:25,793 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:16:25,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:16:25,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:16:25,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:16:25,794 INFO L87 Difference]: Start difference. First operand 898 states and 3114 transitions. Second operand 4 states. [2020-11-09 17:16:25,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:16:25,830 INFO L93 Difference]: Finished difference Result 952 states and 3222 transitions. [2020-11-09 17:16:25,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:16:25,830 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-11-09 17:16:25,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:16:25,839 INFO L225 Difference]: With dead ends: 952 [2020-11-09 17:16:25,839 INFO L226 Difference]: Without dead ends: 844 [2020-11-09 17:16:25,840 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:16:25,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2020-11-09 17:16:25,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 844. [2020-11-09 17:16:25,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 844 states. [2020-11-09 17:16:25,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 2898 transitions. [2020-11-09 17:16:25,874 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 2898 transitions. Word has length 14 [2020-11-09 17:16:25,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:16:25,875 INFO L481 AbstractCegarLoop]: Abstraction has 844 states and 2898 transitions. [2020-11-09 17:16:25,875 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:16:25,875 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 2898 transitions. [2020-11-09 17:16:25,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 17:16:25,878 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:16:25,878 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:16:25,878 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 17:16:25,878 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:16:25,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:16:25,879 INFO L82 PathProgramCache]: Analyzing trace with hash 348990928, now seen corresponding path program 1 times [2020-11-09 17:16:25,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:16:25,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667715672] [2020-11-09 17:16:25,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:16:25,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:16:25,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:16:25,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667715672] [2020-11-09 17:16:25,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:16:25,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:16:25,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1565987739] [2020-11-09 17:16:25,963 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:16:25,966 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:16:25,977 INFO L252 McrAutomatonBuilder]: Finished intersection with 64 states and 146 transitions. [2020-11-09 17:16:25,978 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:16:26,228 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:16:26,229 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:16:26,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:16:26,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:16:26,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:16:26,230 INFO L87 Difference]: Start difference. First operand 844 states and 2898 transitions. Second operand 5 states. [2020-11-09 17:16:26,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:16:26,306 INFO L93 Difference]: Finished difference Result 1111 states and 3727 transitions. [2020-11-09 17:16:26,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 17:16:26,307 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-11-09 17:16:26,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:16:26,313 INFO L225 Difference]: With dead ends: 1111 [2020-11-09 17:16:26,314 INFO L226 Difference]: Without dead ends: 550 [2020-11-09 17:16:26,314 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-09 17:16:26,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2020-11-09 17:16:26,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2020-11-09 17:16:26,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 550 states. [2020-11-09 17:16:26,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 1734 transitions. [2020-11-09 17:16:26,344 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 1734 transitions. Word has length 15 [2020-11-09 17:16:26,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:16:26,344 INFO L481 AbstractCegarLoop]: Abstraction has 550 states and 1734 transitions. [2020-11-09 17:16:26,344 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:16:26,344 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 1734 transitions. [2020-11-09 17:16:26,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-09 17:16:26,347 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:16:26,347 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:16:26,351 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 17:16:26,351 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:16:26,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:16:26,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1322311964, now seen corresponding path program 1 times [2020-11-09 17:16:26,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:16:26,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513478710] [2020-11-09 17:16:26,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:16:26,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:16:26,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:16:26,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513478710] [2020-11-09 17:16:26,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:16:26,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:16:26,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [19899748] [2020-11-09 17:16:26,433 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:16:26,436 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:16:26,447 INFO L252 McrAutomatonBuilder]: Finished intersection with 68 states and 144 transitions. [2020-11-09 17:16:26,448 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:16:26,637 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:16:26,638 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:16:26,638 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:16:26,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:16:26,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:16:26,639 INFO L87 Difference]: Start difference. First operand 550 states and 1734 transitions. Second operand 5 states. [2020-11-09 17:16:26,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:16:26,701 INFO L93 Difference]: Finished difference Result 664 states and 2065 transitions. [2020-11-09 17:16:26,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 17:16:26,702 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-11-09 17:16:26,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:16:26,705 INFO L225 Difference]: With dead ends: 664 [2020-11-09 17:16:26,705 INFO L226 Difference]: Without dead ends: 370 [2020-11-09 17:16:26,706 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-09 17:16:26,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2020-11-09 17:16:26,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2020-11-09 17:16:26,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2020-11-09 17:16:26,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 1080 transitions. [2020-11-09 17:16:26,719 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 1080 transitions. Word has length 16 [2020-11-09 17:16:26,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:16:26,720 INFO L481 AbstractCegarLoop]: Abstraction has 370 states and 1080 transitions. [2020-11-09 17:16:26,720 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:16:26,720 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 1080 transitions. [2020-11-09 17:16:26,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 17:16:26,722 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:16:26,722 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:16:26,722 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 17:16:26,722 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:16:26,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:16:26,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1741286976, now seen corresponding path program 1 times [2020-11-09 17:16:26,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:16:26,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386141881] [2020-11-09 17:16:26,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:16:26,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:16:26,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:16:26,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386141881] [2020-11-09 17:16:26,807 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:16:26,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:16:26,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [259128487] [2020-11-09 17:16:26,808 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:16:26,810 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:16:26,819 INFO L252 McrAutomatonBuilder]: Finished intersection with 64 states and 126 transitions. [2020-11-09 17:16:26,820 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:16:26,995 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:16:26,996 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:16:26,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:16:26,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:16:26,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:16:26,997 INFO L87 Difference]: Start difference. First operand 370 states and 1080 transitions. Second operand 5 states. [2020-11-09 17:16:27,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:16:27,053 INFO L93 Difference]: Finished difference Result 430 states and 1240 transitions. [2020-11-09 17:16:27,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 17:16:27,054 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-11-09 17:16:27,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:16:27,056 INFO L225 Difference]: With dead ends: 430 [2020-11-09 17:16:27,056 INFO L226 Difference]: Without dead ends: 172 [2020-11-09 17:16:27,056 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-09 17:16:27,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-11-09 17:16:27,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2020-11-09 17:16:27,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-11-09 17:16:27,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 452 transitions. [2020-11-09 17:16:27,062 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 452 transitions. Word has length 17 [2020-11-09 17:16:27,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:16:27,063 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 452 transitions. [2020-11-09 17:16:27,063 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:16:27,063 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 452 transitions. [2020-11-09 17:16:27,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-09 17:16:27,064 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:16:27,064 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:16:27,064 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-09 17:16:27,064 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:16:27,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:16:27,064 INFO L82 PathProgramCache]: Analyzing trace with hash 1853538030, now seen corresponding path program 1 times [2020-11-09 17:16:27,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:16:27,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135694692] [2020-11-09 17:16:27,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:16:27,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:16:27,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:16:27,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135694692] [2020-11-09 17:16:27,139 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:16:27,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:16:27,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [960644161] [2020-11-09 17:16:27,139 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:16:27,142 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:16:27,147 INFO L252 McrAutomatonBuilder]: Finished intersection with 38 states and 56 transitions. [2020-11-09 17:16:27,148 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:16:27,206 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:16:27,206 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:16:27,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:16:27,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:16:27,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:16:27,207 INFO L87 Difference]: Start difference. First operand 172 states and 452 transitions. Second operand 5 states. [2020-11-09 17:16:27,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:16:27,251 INFO L93 Difference]: Finished difference Result 148 states and 376 transitions. [2020-11-09 17:16:27,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 17:16:27,251 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-11-09 17:16:27,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:16:27,252 INFO L225 Difference]: With dead ends: 148 [2020-11-09 17:16:27,252 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 17:16:27,252 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-09 17:16:27,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 17:16:27,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 17:16:27,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 17:16:27,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 17:16:27,253 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-11-09 17:16:27,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:16:27,253 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 17:16:27,253 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:16:27,253 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 17:16:27,253 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 17:16:27,254 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-09 17:16:27,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:16:27 BasicIcfg [2020-11-09 17:16:27,257 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 17:16:27,259 INFO L168 Benchmark]: Toolchain (without parser) took 9442.00 ms. Allocated memory was 152.0 MB in the beginning and 223.3 MB in the end (delta: 71.3 MB). Free memory was 126.5 MB in the beginning and 168.3 MB in the end (delta: -41.8 MB). Peak memory consumption was 29.9 MB. Max. memory is 8.0 GB. [2020-11-09 17:16:27,259 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 125.8 MB. Free memory was 95.9 MB in the beginning and 95.9 MB in the end (delta: 67.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 17:16:27,260 INFO L168 Benchmark]: CACSL2BoogieTranslator took 745.52 ms. Allocated memory is still 152.0 MB. Free memory was 125.9 MB in the beginning and 127.4 MB in the end (delta: -1.5 MB). Peak memory consumption was 29.9 MB. Max. memory is 8.0 GB. [2020-11-09 17:16:27,261 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.59 ms. Allocated memory is still 152.0 MB. Free memory was 127.4 MB in the beginning and 125.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 17:16:27,262 INFO L168 Benchmark]: Boogie Preprocessor took 28.41 ms. Allocated memory is still 152.0 MB. Free memory was 125.3 MB in the beginning and 123.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 17:16:27,262 INFO L168 Benchmark]: RCFGBuilder took 527.49 ms. Allocated memory is still 152.0 MB. Free memory was 123.8 MB in the beginning and 99.3 MB in the end (delta: 24.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2020-11-09 17:16:27,263 INFO L168 Benchmark]: TraceAbstraction took 8075.90 ms. Allocated memory was 152.0 MB in the beginning and 223.3 MB in the end (delta: 71.3 MB). Free memory was 99.1 MB in the beginning and 168.3 MB in the end (delta: -69.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 17:16:27,267 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 125.8 MB. Free memory was 95.9 MB in the beginning and 95.9 MB in the end (delta: 67.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 745.52 ms. Allocated memory is still 152.0 MB. Free memory was 125.9 MB in the beginning and 127.4 MB in the end (delta: -1.5 MB). Peak memory consumption was 29.9 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 48.59 ms. Allocated memory is still 152.0 MB. Free memory was 127.4 MB in the beginning and 125.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 28.41 ms. Allocated memory is still 152.0 MB. Free memory was 125.3 MB in the beginning and 123.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 527.49 ms. Allocated memory is still 152.0 MB. Free memory was 123.8 MB in the beginning and 99.3 MB in the end (delta: 24.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 8075.90 ms. Allocated memory was 152.0 MB in the beginning and 223.3 MB in the end (delta: 71.3 MB). Free memory was 99.1 MB in the beginning and 168.3 MB in the end (delta: -69.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1227 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 95 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.5s, 105 PlacesBefore, 41 PlacesAfterwards, 95 TransitionsBefore, 29 TransitionsAfterwards, 2256 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 2 ChoiceCompositions, 80 TotalNumberOfCompositions, 4418 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 93 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.9s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.6s, HoareTripleCheckerStatistics: 263 SDtfs, 250 SDslu, 358 SDs, 0 SdLazy, 63 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 244 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1450occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 117 ConstructedInterpolants, 0 QuantifiedInterpolants, 5229 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 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 proved your program to be correct! Received shutdown request...