/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe037_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 11:22:48,666 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 11:22:48,669 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 11:22:48,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 11:22:48,707 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 11:22:48,715 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 11:22:48,718 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 11:22:48,721 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 11:22:48,723 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 11:22:48,726 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 11:22:48,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 11:22:48,728 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 11:22:48,728 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 11:22:48,730 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 11:22:48,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 11:22:48,734 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 11:22:48,735 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 11:22:48,737 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 11:22:48,738 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 11:22:48,747 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 11:22:48,749 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 11:22:48,750 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 11:22:48,751 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 11:22:48,752 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 11:22:48,762 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 11:22:48,762 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 11:22:48,762 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 11:22:48,765 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 11:22:48,765 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 11:22:48,768 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 11:22:48,768 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 11:22:48,769 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 11:22:48,770 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 11:22:48,771 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 11:22:48,772 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 11:22:48,772 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 11:22:48,773 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 11:22:48,773 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 11:22:48,773 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 11:22:48,774 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 11:22:48,775 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 11:22:48,776 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-16 11:22:48,815 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 11:22:48,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 11:22:48,818 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 11:22:48,818 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 11:22:48,818 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 11:22:48,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 11:22:48,818 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 11:22:48,819 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 11:22:48,819 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 11:22:48,819 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 11:22:48,820 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 11:22:48,820 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 11:22:48,820 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 11:22:48,821 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 11:22:48,821 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 11:22:48,821 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 11:22:48,821 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 11:22:48,822 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 11:22:48,822 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 11:22:48,822 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 11:22:48,822 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 11:22:48,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 11:22:48,823 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 11:22:48,823 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 11:22:48,823 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 11:22:48,823 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 11:22:48,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 11:22:48,824 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 11:22:48,824 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-16 11:22:48,824 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 11:22:49,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 11:22:49,154 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 11:22:49,158 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 11:22:49,159 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 11:22:49,160 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 11:22:49,160 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_tso.oepc.i [2020-10-16 11:22:49,208 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/10839a04f/61b21f1d63c049babf4115bc09c26f41/FLAG67541a264 [2020-10-16 11:22:49,707 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 11:22:49,708 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe037_tso.oepc.i [2020-10-16 11:22:49,725 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/10839a04f/61b21f1d63c049babf4115bc09c26f41/FLAG67541a264 [2020-10-16 11:22:50,043 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/10839a04f/61b21f1d63c049babf4115bc09c26f41 [2020-10-16 11:22:50,051 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 11:22:50,052 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 11:22:50,053 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 11:22:50,054 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 11:22:50,057 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 11:22:50,058 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:22:50" (1/1) ... [2020-10-16 11:22:50,060 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@93fe9d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:50, skipping insertion in model container [2020-10-16 11:22:50,061 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:22:50" (1/1) ... [2020-10-16 11:22:50,068 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 11:22:50,110 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 11:22:50,584 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:22:50,599 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 11:22:50,660 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:22:50,756 INFO L208 MainTranslator]: Completed translation [2020-10-16 11:22:50,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:50 WrapperNode [2020-10-16 11:22:50,758 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 11:22:50,759 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 11:22:50,759 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 11:22:50,760 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 11:22:50,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:50" (1/1) ... [2020-10-16 11:22:50,783 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:50" (1/1) ... [2020-10-16 11:22:50,806 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 11:22:50,806 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 11:22:50,806 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 11:22:50,807 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 11:22:50,816 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:50" (1/1) ... [2020-10-16 11:22:50,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:50" (1/1) ... [2020-10-16 11:22:50,819 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:50" (1/1) ... [2020-10-16 11:22:50,819 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:50" (1/1) ... [2020-10-16 11:22:50,825 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:50" (1/1) ... [2020-10-16 11:22:50,828 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:50" (1/1) ... [2020-10-16 11:22:50,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:50" (1/1) ... [2020-10-16 11:22:50,833 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 11:22:50,833 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 11:22:50,833 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 11:22:50,834 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 11:22:50,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:50" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 11:22:50,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 11:22:50,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 11:22:50,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 11:22:50,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 11:22:50,894 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 11:22:50,894 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 11:22:50,894 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 11:22:50,895 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 11:22:50,895 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 11:22:50,895 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 11:22:50,895 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 11:22:50,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 11:22:50,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 11:22:50,897 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 11:22:51,215 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 11:22:51,216 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 11:22:51,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:22:51 BoogieIcfgContainer [2020-10-16 11:22:51,219 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 11:22:51,220 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 11:22:51,220 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 11:22:51,224 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 11:22:51,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:22:50" (1/3) ... [2020-10-16 11:22:51,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b429b36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:22:51, skipping insertion in model container [2020-10-16 11:22:51,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:50" (2/3) ... [2020-10-16 11:22:51,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b429b36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:22:51, skipping insertion in model container [2020-10-16 11:22:51,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:22:51" (3/3) ... [2020-10-16 11:22:51,227 INFO L111 eAbstractionObserver]: Analyzing ICFG safe037_tso.oepc.i [2020-10-16 11:22:51,239 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 11:22:51,239 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 11:22:51,246 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 11:22:51,247 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 11:22:51,297 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:51,297 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:51,298 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:51,300 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:51,301 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:51,301 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:51,302 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:51,302 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:51,302 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:51,303 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:51,306 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:51,307 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:51,307 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:51,307 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:51,308 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:51,308 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:51,308 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:51,309 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:51,315 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:51,316 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:51,319 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:51,320 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:51,330 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:51,331 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:51,331 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:51,331 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:51,335 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:51,335 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:51,335 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:51,336 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:51,338 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 11:22:51,350 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 11:22:51,369 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 11:22:51,370 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 11:22:51,370 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 11:22:51,370 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 11:22:51,370 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 11:22:51,370 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 11:22:51,371 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 11:22:51,371 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 11:22:51,383 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 11:22:51,386 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-10-16 11:22:51,389 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 71 transitions, 157 flow [2020-10-16 11:22:51,390 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-10-16 11:22:51,437 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-10-16 11:22:51,437 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 11:22:51,442 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-16 11:22:51,445 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-16 11:22:52,724 INFO L132 LiptonReduction]: Checked pairs total: 2447 [2020-10-16 11:22:52,724 INFO L134 LiptonReduction]: Total number of compositions: 58 [2020-10-16 11:22:52,731 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-16 11:22:52,759 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-16 11:22:52,761 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-16 11:22:52,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 11:22:52,769 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:22:52,770 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:22:52,770 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:22:52,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:22:52,776 INFO L82 PathProgramCache]: Analyzing trace with hash 385809968, now seen corresponding path program 1 times [2020-10-16 11:22:52,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:22:52,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836754666] [2020-10-16 11:22:52,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:22:52,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:22:52,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:22:52,958 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836754666] [2020-10-16 11:22:52,958 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:22:52,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:22:52,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154366117] [2020-10-16 11:22:52,964 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-16 11:22:52,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:22:52,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-16 11:22:52,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 11:22:52,981 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-16 11:22:53,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:22:53,012 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-16 11:22:53,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-16 11:22:53,014 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-16 11:22:53,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:22:53,032 INFO L225 Difference]: With dead ends: 362 [2020-10-16 11:22:53,032 INFO L226 Difference]: Without dead ends: 298 [2020-10-16 11:22:53,034 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 [2020-10-16 11:22:53,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-16 11:22:53,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-16 11:22:53,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-16 11:22:53,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-16 11:22:53,117 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-16 11:22:53,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:22:53,119 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-16 11:22:53,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-16 11:22:53,119 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-16 11:22:53,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 11:22:53,123 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:22:53,123 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:22:53,123 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 11:22:53,123 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:22:53,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:22:53,124 INFO L82 PathProgramCache]: Analyzing trace with hash -924796273, now seen corresponding path program 1 times [2020-10-16 11:22:53,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:22:53,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692700323] [2020-10-16 11:22:53,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:22:53,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:22:53,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:22:53,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692700323] [2020-10-16 11:22:53,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:22:53,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:22:53,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811091521] [2020-10-16 11:22:53,271 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:22:53,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:22:53,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:22:53,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:22:53,272 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-10-16 11:22:53,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:22:53,289 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-10-16 11:22:53,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:22:53,289 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-16 11:22:53,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:22:53,292 INFO L225 Difference]: With dead ends: 217 [2020-10-16 11:22:53,292 INFO L226 Difference]: Without dead ends: 217 [2020-10-16 11:22:53,293 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:22:53,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-10-16 11:22:53,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-10-16 11:22:53,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-10-16 11:22:53,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-10-16 11:22:53,313 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-10-16 11:22:53,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:22:53,314 INFO L481 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-10-16 11:22:53,314 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:22:53,314 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-10-16 11:22:53,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 11:22:53,319 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:22:53,319 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:22:53,319 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 11:22:53,319 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:22:53,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:22:53,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1123394358, now seen corresponding path program 1 times [2020-10-16 11:22:53,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:22:53,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015581300] [2020-10-16 11:22:53,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:22:53,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:22:53,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:22:53,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015581300] [2020-10-16 11:22:53,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:22:53,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:22:53,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499173087] [2020-10-16 11:22:53,422 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:22:53,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:22:53,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:22:53,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:22:53,423 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 4 states. [2020-10-16 11:22:53,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:22:53,453 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-10-16 11:22:53,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 11:22:53,454 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-16 11:22:53,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:22:53,456 INFO L225 Difference]: With dead ends: 136 [2020-10-16 11:22:53,456 INFO L226 Difference]: Without dead ends: 136 [2020-10-16 11:22:53,456 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:22:53,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-16 11:22:53,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-10-16 11:22:53,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-16 11:22:53,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-10-16 11:22:53,473 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-10-16 11:22:53,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:22:53,473 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-10-16 11:22:53,474 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:22:53,474 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-10-16 11:22:53,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 11:22:53,480 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:22:53,480 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:22:53,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 11:22:53,481 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:22:53,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:22:53,483 INFO L82 PathProgramCache]: Analyzing trace with hash -104701845, now seen corresponding path program 1 times [2020-10-16 11:22:53,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:22:53,484 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138935491] [2020-10-16 11:22:53,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:22:53,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:22:53,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:22:53,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138935491] [2020-10-16 11:22:53,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:22:53,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 11:22:53,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061658400] [2020-10-16 11:22:53,574 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 11:22:53,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:22:53,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 11:22:53,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:22:53,575 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 5 states. [2020-10-16 11:22:53,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:22:53,603 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-10-16 11:22:53,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:22:53,604 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-16 11:22:53,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:22:53,605 INFO L225 Difference]: With dead ends: 109 [2020-10-16 11:22:53,605 INFO L226 Difference]: Without dead ends: 109 [2020-10-16 11:22:53,605 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:22:53,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-16 11:22:53,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-16 11:22:53,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-16 11:22:53,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-10-16 11:22:53,611 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-10-16 11:22:53,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:22:53,612 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-10-16 11:22:53,612 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 11:22:53,612 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-10-16 11:22:53,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 11:22:53,613 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:22:53,613 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:22:53,614 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 11:22:53,614 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:22:53,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:22:53,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1786856379, now seen corresponding path program 1 times [2020-10-16 11:22:53,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:22:53,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414541375] [2020-10-16 11:22:53,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:22:53,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:22:53,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:22:53,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414541375] [2020-10-16 11:22:53,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:22:53,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 11:22:53,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797984731] [2020-10-16 11:22:53,679 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 11:22:53,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:22:53,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 11:22:53,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:22:53,680 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 5 states. [2020-10-16 11:22:53,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:22:53,713 INFO L93 Difference]: Finished difference Result 135 states and 291 transitions. [2020-10-16 11:22:53,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:22:53,714 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-16 11:22:53,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:22:53,715 INFO L225 Difference]: With dead ends: 135 [2020-10-16 11:22:53,715 INFO L226 Difference]: Without dead ends: 85 [2020-10-16 11:22:53,716 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 11:22:53,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-16 11:22:53,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-10-16 11:22:53,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-16 11:22:53,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 177 transitions. [2020-10-16 11:22:53,736 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 177 transitions. Word has length 18 [2020-10-16 11:22:53,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:22:53,736 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 177 transitions. [2020-10-16 11:22:53,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 11:22:53,737 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 177 transitions. [2020-10-16 11:22:53,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 11:22:53,738 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:22:53,738 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:22:53,738 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 11:22:53,738 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:22:53,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:22:53,739 INFO L82 PathProgramCache]: Analyzing trace with hash -739037833, now seen corresponding path program 2 times [2020-10-16 11:22:53,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:22:53,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590996999] [2020-10-16 11:22:53,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:22:53,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:22:53,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:22:53,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590996999] [2020-10-16 11:22:53,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:22:53,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 11:22:53,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943448823] [2020-10-16 11:22:53,834 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 11:22:53,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:22:53,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 11:22:53,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:22:53,834 INFO L87 Difference]: Start difference. First operand 85 states and 177 transitions. Second operand 5 states. [2020-10-16 11:22:53,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:22:53,870 INFO L93 Difference]: Finished difference Result 99 states and 199 transitions. [2020-10-16 11:22:53,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:22:53,871 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-16 11:22:53,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:22:53,871 INFO L225 Difference]: With dead ends: 99 [2020-10-16 11:22:53,872 INFO L226 Difference]: Without dead ends: 37 [2020-10-16 11:22:53,873 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 11:22:53,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-16 11:22:53,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-10-16 11:22:53,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-16 11:22:53,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-10-16 11:22:53,876 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 18 [2020-10-16 11:22:53,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:22:53,876 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-10-16 11:22:53,877 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 11:22:53,877 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-10-16 11:22:53,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 11:22:53,877 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:22:53,877 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:22:53,878 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 11:22:53,878 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:22:53,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:22:53,878 INFO L82 PathProgramCache]: Analyzing trace with hash 21041593, now seen corresponding path program 3 times [2020-10-16 11:22:53,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:22:53,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004122250] [2020-10-16 11:22:53,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:22:53,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:22:53,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:22:53,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004122250] [2020-10-16 11:22:53,966 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:22:53,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 11:22:53,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015386737] [2020-10-16 11:22:53,967 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 11:22:53,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:22:53,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 11:22:53,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:22:53,968 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 5 states. [2020-10-16 11:22:53,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:22:53,999 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-10-16 11:22:53,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:22:54,000 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-16 11:22:54,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:22:54,000 INFO L225 Difference]: With dead ends: 36 [2020-10-16 11:22:54,000 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 11:22:54,001 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 11:22:54,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 11:22:54,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 11:22:54,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 11:22:54,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 11:22:54,002 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-16 11:22:54,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:22:54,002 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 11:22:54,002 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 11:22:54,002 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 11:22:54,003 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 11:22:54,003 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 11:22:54,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:22:54 BasicIcfg [2020-10-16 11:22:54,006 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 11:22:54,008 INFO L168 Benchmark]: Toolchain (without parser) took 3955.70 ms. Allocated memory was 144.2 MB in the beginning and 247.5 MB in the end (delta: 103.3 MB). Free memory was 104.6 MB in the beginning and 185.2 MB in the end (delta: -80.6 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-10-16 11:22:54,009 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 144.2 MB. Free memory was 124.4 MB in the beginning and 124.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-10-16 11:22:54,010 INFO L168 Benchmark]: CACSL2BoogieTranslator took 705.10 ms. Allocated memory was 144.2 MB in the beginning and 205.0 MB in the end (delta: 60.8 MB). Free memory was 104.4 MB in the beginning and 162.2 MB in the end (delta: -57.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2020-10-16 11:22:54,011 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.76 ms. Allocated memory is still 205.0 MB. Free memory was 162.2 MB in the beginning and 159.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-10-16 11:22:54,012 INFO L168 Benchmark]: Boogie Preprocessor took 26.56 ms. Allocated memory is still 205.0 MB. Free memory was 159.8 MB in the beginning and 158.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-16 11:22:54,013 INFO L168 Benchmark]: RCFGBuilder took 385.46 ms. Allocated memory is still 205.0 MB. Free memory was 158.6 MB in the beginning and 135.9 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-10-16 11:22:54,014 INFO L168 Benchmark]: TraceAbstraction took 2786.08 ms. Allocated memory was 205.0 MB in the beginning and 247.5 MB in the end (delta: 42.5 MB). Free memory was 135.3 MB in the beginning and 185.2 MB in the end (delta: -49.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 11:22:54,018 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 144.2 MB. Free memory was 124.4 MB in the beginning and 124.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 705.10 ms. Allocated memory was 144.2 MB in the beginning and 205.0 MB in the end (delta: 60.8 MB). Free memory was 104.4 MB in the beginning and 162.2 MB in the end (delta: -57.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 46.76 ms. Allocated memory is still 205.0 MB. Free memory was 162.2 MB in the beginning and 159.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.56 ms. Allocated memory is still 205.0 MB. Free memory was 159.8 MB in the beginning and 158.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 385.46 ms. Allocated memory is still 205.0 MB. Free memory was 158.6 MB in the beginning and 135.9 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2786.08 ms. Allocated memory was 205.0 MB in the beginning and 247.5 MB in the end (delta: 42.5 MB). Free memory was 135.3 MB in the beginning and 185.2 MB in the end (delta: -49.9 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 808 VarBasedMoverChecksPositive, 39 VarBasedMoverChecksNegative, 10 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 66 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.3s, 79 PlacesBefore, 32 PlacesAfterwards, 71 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 58 TotalNumberOfCompositions, 2447 MoverChecksTotal - PositiveResult [Line: 7]: 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, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.6s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 139 SDtfs, 90 SDslu, 214 SDs, 0 SdLazy, 58 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 3389 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...