/usr/bin/java -Xmx16000000000 -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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-New_States.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe037_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 12:29:32,543 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 12:29:32,547 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 12:29:32,605 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 12:29:32,606 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 12:29:32,609 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 12:29:32,613 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 12:29:32,621 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 12:29:32,624 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 12:29:32,630 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 12:29:32,632 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 12:29:32,633 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 12:29:32,634 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 12:29:32,637 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 12:29:32,639 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 12:29:32,641 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 12:29:32,641 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 12:29:32,642 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 12:29:32,650 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 12:29:32,652 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 12:29:32,654 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 12:29:32,659 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 12:29:32,661 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 12:29:32,662 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 12:29:32,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-12 12:29:32,669 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 12:29:32,670 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 12:29:32,671 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 12:29:32,672 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 12:29:32,674 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 12:29:32,674 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 12:29:32,675 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 12:29:32,675 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 12:29:32,676 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 12:29:32,677 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 12:29:32,677 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 12:29:32,678 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-New_States.epf [2020-11-12 12:29:32,705 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 12:29:32,706 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 12:29:32,707 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 12:29:32,707 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 12:29:32,708 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 12:29:32,708 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 12:29:32,708 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 12:29:32,708 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 12:29:32,709 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 12:29:32,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 12:29:32,709 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 12:29:32,709 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 12:29:32,709 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 12:29:32,710 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 12:29:32,710 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 12:29:32,710 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 12:29:32,710 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 12:29:32,710 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 12:29:32,711 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 12:29:32,711 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 12:29:32,711 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 12:29:32,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 12:29:32,712 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 12:29:32,712 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 12:29:32,712 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 12:29:32,712 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 12:29:32,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 12:29:32,713 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 12:29:32,713 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 12:29:32,713 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 12:29:32,713 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=NEW_STATES 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 12:29:33,154 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 12:29:33,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 12:29:33,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 12:29:33,205 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 12:29:33,206 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 12:29:33,207 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_rmo.opt.i [2020-11-12 12:29:33,275 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b45d7823/fa32fb313fb347f28f5d370559cbf685/FLAG356240fa6 [2020-11-12 12:29:33,968 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 12:29:33,969 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_rmo.opt.i [2020-11-12 12:29:33,992 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b45d7823/fa32fb313fb347f28f5d370559cbf685/FLAG356240fa6 [2020-11-12 12:29:34,210 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b45d7823/fa32fb313fb347f28f5d370559cbf685 [2020-11-12 12:29:34,213 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 12:29:34,221 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 12:29:34,223 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 12:29:34,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 12:29:34,227 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 12:29:34,228 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:29:34" (1/1) ... [2020-11-12 12:29:34,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1701b0c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:34, skipping insertion in model container [2020-11-12 12:29:34,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:29:34" (1/1) ... [2020-11-12 12:29:34,240 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 12:29:34,297 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 12:29:34,780 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:29:34,798 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 12:29:34,890 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:29:35,018 INFO L208 MainTranslator]: Completed translation [2020-11-12 12:29:35,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:35 WrapperNode [2020-11-12 12:29:35,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 12:29:35,022 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 12:29:35,022 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 12:29:35,023 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 12:29:35,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:35" (1/1) ... [2020-11-12 12:29:35,079 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:35" (1/1) ... [2020-11-12 12:29:35,118 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 12:29:35,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 12:29:35,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 12:29:35,123 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 12:29:35,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:35" (1/1) ... [2020-11-12 12:29:35,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:35" (1/1) ... [2020-11-12 12:29:35,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:35" (1/1) ... [2020-11-12 12:29:35,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:35" (1/1) ... [2020-11-12 12:29:35,146 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:35" (1/1) ... [2020-11-12 12:29:35,148 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:35" (1/1) ... [2020-11-12 12:29:35,151 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:35" (1/1) ... [2020-11-12 12:29:35,154 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 12:29:35,155 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 12:29:35,156 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 12:29:35,156 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 12:29:35,157 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:35" (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 [2020-11-12 12:29:35,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 12:29:35,251 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 12:29:35,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 12:29:35,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 12:29:35,252 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 12:29:35,252 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 12:29:35,253 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 12:29:35,253 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 12:29:35,254 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-12 12:29:35,254 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-12 12:29:35,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 12:29:35,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 12:29:35,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 12:29:35,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 12:29:35,257 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-12 12:29:35,818 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 12:29:35,818 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 12:29:35,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:29:35 BoogieIcfgContainer [2020-11-12 12:29:35,821 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 12:29:35,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 12:29:35,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 12:29:35,826 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 12:29:35,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:29:34" (1/3) ... [2020-11-12 12:29:35,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@280fafe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:29:35, skipping insertion in model container [2020-11-12 12:29:35,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:35" (2/3) ... [2020-11-12 12:29:35,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@280fafe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:29:35, skipping insertion in model container [2020-11-12 12:29:35,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:29:35" (3/3) ... [2020-11-12 12:29:35,829 INFO L111 eAbstractionObserver]: Analyzing ICFG safe037_rmo.opt.i [2020-11-12 12:29:35,845 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 12:29:35,846 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 12:29:35,849 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 12:29:35,850 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 12:29:35,885 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,886 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,886 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,886 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,887 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,887 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,887 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,887 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,888 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,888 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,889 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,889 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,890 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,890 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,890 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,890 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,891 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,891 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,891 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,891 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,892 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,892 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,892 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,893 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,893 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,893 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,894 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,894 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,894 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,894 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,894 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,895 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,895 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,895 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,896 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,896 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,898 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,899 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,899 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,899 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,909 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,910 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,910 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,910 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,913 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,914 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,914 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,914 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:29:35,917 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 12:29:35,932 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-12 12:29:35,959 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 12:29:35,959 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 12:29:35,959 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 12:29:35,959 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 12:29:35,960 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 12:29:35,960 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 12:29:35,960 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 12:29:35,960 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 12:29:35,975 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 80 transitions, 175 flow [2020-11-12 12:29:37,014 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:37,977 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 959ms [2020-11-12 12:29:38,018 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:38,182 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 33406 states, 30410 states have (on average 1.202367642222953) internal successors, (36564), 33405 states have internal predecessors, (36564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:38,239 INFO L276 IsEmpty]: Start isEmpty. Operand has 33406 states, 30410 states have (on average 1.202367642222953) internal successors, (36564), 33405 states have internal predecessors, (36564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:38,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-11-12 12:29:38,266 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:29:38,267 INFO L494 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] [2020-11-12 12:29:38,267 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:29:38,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:29:38,275 INFO L82 PathProgramCache]: Analyzing trace with hash -1869165386, now seen corresponding path program 1 times [2020-11-12 12:29:38,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:29:38,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136619863] [2020-11-12 12:29:38,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:29:38,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:29:38,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:29:38,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136619863] [2020-11-12 12:29:38,871 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:29:38,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:29:38,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050472324] [2020-11-12 12:29:38,875 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:29:38,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:29:38,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:29:38,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:29:38,922 INFO L87 Difference]: Start difference. First operand has 33406 states, 30410 states have (on average 1.202367642222953) internal successors, (36564), 33405 states have internal predecessors, (36564), 0 states have call successors, (0), 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 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:39,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:29:39,357 INFO L93 Difference]: Finished difference Result 10601 states and 12623 transitions. [2020-11-12 12:29:39,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:29:39,360 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2020-11-12 12:29:39,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:29:39,399 INFO L225 Difference]: With dead ends: 10601 [2020-11-12 12:29:39,400 INFO L226 Difference]: Without dead ends: 4081 [2020-11-12 12:29:39,401 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:29:39,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4081 states. [2020-11-12 12:29:39,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4081 to 4081. [2020-11-12 12:29:39,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4081 states, 3802 states have (on average 1.2969489742240925) internal successors, (4931), 4080 states have internal predecessors, (4931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:39,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4081 states to 4081 states and 4931 transitions. [2020-11-12 12:29:39,774 INFO L78 Accepts]: Start accepts. Automaton has 4081 states and 4931 transitions. Word has length 43 [2020-11-12 12:29:39,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:29:39,777 INFO L481 AbstractCegarLoop]: Abstraction has 4081 states and 4931 transitions. [2020-11-12 12:29:39,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:39,782 INFO L276 IsEmpty]: Start isEmpty. Operand 4081 states and 4931 transitions. [2020-11-12 12:29:39,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-12 12:29:39,792 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:29:39,792 INFO L494 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] [2020-11-12 12:29:39,793 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 12:29:39,793 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:29:39,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:29:39,794 INFO L82 PathProgramCache]: Analyzing trace with hash -1028386504, now seen corresponding path program 1 times [2020-11-12 12:29:39,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:29:39,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649051540] [2020-11-12 12:29:39,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:29:39,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:29:40,140 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 5 [2020-11-12 12:29:40,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:29:40,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649051540] [2020-11-12 12:29:40,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:29:40,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:29:40,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671320528] [2020-11-12 12:29:40,154 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:29:40,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:29:40,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:29:40,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:29:40,155 INFO L87 Difference]: Start difference. First operand 4081 states and 4931 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:40,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:29:40,422 INFO L93 Difference]: Finished difference Result 2693 states and 3097 transitions. [2020-11-12 12:29:40,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:29:40,423 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2020-11-12 12:29:40,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:29:40,433 INFO L225 Difference]: With dead ends: 2693 [2020-11-12 12:29:40,433 INFO L226 Difference]: Without dead ends: 2098 [2020-11-12 12:29:40,434 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-11-12 12:29:40,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2098 states. [2020-11-12 12:29:40,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2098 to 2098. [2020-11-12 12:29:40,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2098 states, 1963 states have (on average 1.205298013245033) internal successors, (2366), 2097 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:40,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2098 states to 2098 states and 2366 transitions. [2020-11-12 12:29:40,492 INFO L78 Accepts]: Start accepts. Automaton has 2098 states and 2366 transitions. Word has length 47 [2020-11-12 12:29:40,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:29:40,492 INFO L481 AbstractCegarLoop]: Abstraction has 2098 states and 2366 transitions. [2020-11-12 12:29:40,493 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:40,493 INFO L276 IsEmpty]: Start isEmpty. Operand 2098 states and 2366 transitions. [2020-11-12 12:29:40,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-12 12:29:40,498 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:29:40,498 INFO L494 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] [2020-11-12 12:29:40,498 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 12:29:40,499 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:29:40,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:29:40,499 INFO L82 PathProgramCache]: Analyzing trace with hash 1357778806, now seen corresponding path program 1 times [2020-11-12 12:29:40,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:29:40,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487714731] [2020-11-12 12:29:40,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:29:40,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:29:40,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:29:40,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487714731] [2020-11-12 12:29:40,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:29:40,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-12 12:29:40,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454478815] [2020-11-12 12:29:40,801 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-12 12:29:40,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:29:40,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-12 12:29:40,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-12 12:29:40,805 INFO L87 Difference]: Start difference. First operand 2098 states and 2366 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:41,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:29:41,066 INFO L93 Difference]: Finished difference Result 1072 states and 1193 transitions. [2020-11-12 12:29:41,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:29:41,067 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2020-11-12 12:29:41,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:29:41,070 INFO L225 Difference]: With dead ends: 1072 [2020-11-12 12:29:41,070 INFO L226 Difference]: Without dead ends: 544 [2020-11-12 12:29:41,070 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-11-12 12:29:41,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2020-11-12 12:29:41,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 544. [2020-11-12 12:29:41,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 517 states have (on average 1.1179883945841393) internal successors, (578), 543 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:41,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 578 transitions. [2020-11-12 12:29:41,084 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 578 transitions. Word has length 51 [2020-11-12 12:29:41,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:29:41,084 INFO L481 AbstractCegarLoop]: Abstraction has 544 states and 578 transitions. [2020-11-12 12:29:41,084 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:41,085 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 578 transitions. [2020-11-12 12:29:41,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-11-12 12:29:41,086 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:29:41,086 INFO L494 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] [2020-11-12 12:29:41,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 12:29:41,087 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:29:41,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:29:41,087 INFO L82 PathProgramCache]: Analyzing trace with hash -288612556, now seen corresponding path program 1 times [2020-11-12 12:29:41,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:29:41,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767790760] [2020-11-12 12:29:41,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:29:41,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:29:41,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:29:41,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767790760] [2020-11-12 12:29:41,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:29:41,302 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:29:41,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914160204] [2020-11-12 12:29:41,303 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:29:41,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:29:41,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:29:41,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:29:41,305 INFO L87 Difference]: Start difference. First operand 544 states and 578 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:41,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:29:41,506 INFO L93 Difference]: Finished difference Result 747 states and 772 transitions. [2020-11-12 12:29:41,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 12:29:41,507 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2020-11-12 12:29:41,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:29:41,510 INFO L225 Difference]: With dead ends: 747 [2020-11-12 12:29:41,510 INFO L226 Difference]: Without dead ends: 411 [2020-11-12 12:29:41,511 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:29:41,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2020-11-12 12:29:41,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 411. [2020-11-12 12:29:41,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 384 states have (on average 1.0989583333333333) internal successors, (422), 410 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:41,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 422 transitions. [2020-11-12 12:29:41,533 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 422 transitions. Word has length 55 [2020-11-12 12:29:41,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:29:41,533 INFO L481 AbstractCegarLoop]: Abstraction has 411 states and 422 transitions. [2020-11-12 12:29:41,534 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:41,534 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 422 transitions. [2020-11-12 12:29:41,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-11-12 12:29:41,535 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:29:41,535 INFO L494 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] [2020-11-12 12:29:41,536 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 12:29:41,536 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:29:41,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:29:41,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1953173588, now seen corresponding path program 2 times [2020-11-12 12:29:41,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:29:41,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446988227] [2020-11-12 12:29:41,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:29:41,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:29:41,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:29:41,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446988227] [2020-11-12 12:29:41,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:29:41,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:29:41,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872049137] [2020-11-12 12:29:41,765 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:29:41,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:29:41,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:29:41,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:29:41,769 INFO L87 Difference]: Start difference. First operand 411 states and 422 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:41,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:29:41,932 INFO L93 Difference]: Finished difference Result 610 states and 612 transitions. [2020-11-12 12:29:41,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 12:29:41,935 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2020-11-12 12:29:41,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:29:41,937 INFO L225 Difference]: With dead ends: 610 [2020-11-12 12:29:41,937 INFO L226 Difference]: Without dead ends: 362 [2020-11-12 12:29:41,938 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:29:41,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2020-11-12 12:29:41,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2020-11-12 12:29:41,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 335 states have (on average 1.0776119402985074) internal successors, (361), 361 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:41,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 361 transitions. [2020-11-12 12:29:41,948 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 361 transitions. Word has length 55 [2020-11-12 12:29:41,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:29:41,950 INFO L481 AbstractCegarLoop]: Abstraction has 362 states and 361 transitions. [2020-11-12 12:29:41,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:41,950 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 361 transitions. [2020-11-12 12:29:41,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-11-12 12:29:41,953 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:29:41,953 INFO L494 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] [2020-11-12 12:29:41,953 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-12 12:29:41,954 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:29:41,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:29:41,954 INFO L82 PathProgramCache]: Analyzing trace with hash 774113022, now seen corresponding path program 3 times [2020-11-12 12:29:41,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:29:41,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169255470] [2020-11-12 12:29:41,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:29:42,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:29:42,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:29:42,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169255470] [2020-11-12 12:29:42,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:29:42,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:29:42,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679426862] [2020-11-12 12:29:42,136 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:29:42,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:29:42,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:29:42,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:29:42,138 INFO L87 Difference]: Start difference. First operand 362 states and 361 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:42,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:29:42,237 INFO L93 Difference]: Finished difference Result 254 states and 253 transitions. [2020-11-12 12:29:42,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 12:29:42,237 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2020-11-12 12:29:42,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:29:42,238 INFO L225 Difference]: With dead ends: 254 [2020-11-12 12:29:42,238 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 12:29:42,238 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:29:42,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 12:29:42,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 12:29:42,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:42,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 12:29:42,240 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 55 [2020-11-12 12:29:42,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:29:42,240 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 12:29:42,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:29:42,241 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 12:29:42,241 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 12:29:42,241 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-12 12:29:42,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:29:42 BasicIcfg [2020-11-12 12:29:42,247 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 12:29:42,251 INFO L168 Benchmark]: Toolchain (without parser) took 8033.55 ms. Allocated memory was 302.0 MB in the beginning and 1.2 GB in the end (delta: 864.0 MB). Free memory was 277.3 MB in the beginning and 993.0 MB in the end (delta: -715.7 MB). Peak memory consumption was 150.8 MB. Max. memory is 16.0 GB. [2020-11-12 12:29:42,252 INFO L168 Benchmark]: CDTParser took 0.72 ms. Allocated memory is still 302.0 MB. Free memory was 272.7 MB in the beginning and 272.7 MB in the end (delta: 65.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 12:29:42,258 INFO L168 Benchmark]: CACSL2BoogieTranslator took 797.95 ms. Allocated memory is still 302.0 MB. Free memory was 276.7 MB in the beginning and 245.6 MB in the end (delta: 31.1 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2020-11-12 12:29:42,259 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.71 ms. Allocated memory is still 302.0 MB. Free memory was 245.6 MB in the beginning and 243.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:29:42,260 INFO L168 Benchmark]: Boogie Preprocessor took 34.76 ms. Allocated memory is still 302.0 MB. Free memory was 243.7 MB in the beginning and 242.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:29:42,260 INFO L168 Benchmark]: RCFGBuilder took 665.42 ms. Allocated memory is still 302.0 MB. Free memory was 242.2 MB in the beginning and 263.6 MB in the end (delta: -21.4 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.0 GB. [2020-11-12 12:29:42,261 INFO L168 Benchmark]: TraceAbstraction took 6425.07 ms. Allocated memory was 302.0 MB in the beginning and 1.2 GB in the end (delta: 864.0 MB). Free memory was 263.6 MB in the beginning and 993.0 MB in the end (delta: -729.4 MB). Peak memory consumption was 135.7 MB. Max. memory is 16.0 GB. [2020-11-12 12:29:42,274 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72 ms. Allocated memory is still 302.0 MB. Free memory was 272.7 MB in the beginning and 272.7 MB in the end (delta: 65.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 797.95 ms. Allocated memory is still 302.0 MB. Free memory was 276.7 MB in the beginning and 245.6 MB in the end (delta: 31.1 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 96.71 ms. Allocated memory is still 302.0 MB. Free memory was 245.6 MB in the beginning and 243.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 34.76 ms. Allocated memory is still 302.0 MB. Free memory was 243.7 MB in the beginning and 242.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 665.42 ms. Allocated memory is still 302.0 MB. Free memory was 242.2 MB in the beginning and 263.6 MB in the end (delta: -21.4 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 6425.07 ms. Allocated memory was 302.0 MB in the beginning and 1.2 GB in the end (delta: 864.0 MB). Free memory was 263.6 MB in the beginning and 993.0 MB in the end (delta: -729.4 MB). Peak memory consumption was 135.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 4 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 416 SDtfs, 583 SDslu, 1577 SDs, 0 SdLazy, 182 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33406occurred 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 306 NumberOfCodeBlocks, 306 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 300 ConstructedInterpolants, 0 QuantifiedInterpolants, 37956 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...