/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/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-atomic/szymanski.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 12:31:00,059 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 12:31:00,062 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 12:31:00,105 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 12:31:00,105 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 12:31:00,114 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 12:31:00,118 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 12:31:00,122 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 12:31:00,125 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 12:31:00,128 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 12:31:00,129 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 12:31:00,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 12:31:00,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 12:31:00,133 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 12:31:00,136 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 12:31:00,138 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 12:31:00,139 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 12:31:00,141 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 12:31:00,142 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 12:31:00,151 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 12:31:00,153 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 12:31:00,154 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 12:31:00,155 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 12:31:00,156 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 12:31:00,168 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-16 12:31:00,177 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 12:31:00,178 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 12:31:00,180 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 12:31:00,181 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-16 12:31:00,221 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 12:31:00,222 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 12:31:00,223 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 12:31:00,223 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 12:31:00,224 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 12:31:00,224 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 12:31:00,224 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 12:31:00,225 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 12:31:00,225 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 12:31:00,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 12:31:00,226 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 12:31:00,226 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 12:31:00,226 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 12:31:00,227 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 12:31:00,227 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 12:31:00,227 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 12:31:00,227 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 12:31:00,227 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 12:31:00,228 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 12:31:00,228 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 12:31:00,228 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 12:31:00,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:31:00,228 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 12:31:00,228 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 12:31:00,229 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 12:31:00,229 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 12:31:00,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 12:31:00,229 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-16 12:31:00,229 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 12:31:00,230 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 12:31:00,230 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-16 12:31:00,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 12:31:00,559 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 12:31:00,564 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 12:31:00,565 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 12:31:00,565 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 12:31:00,566 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/szymanski.i [2020-10-16 12:31:00,617 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3b67983a8/e3326ea7f77f47cbb653e15777088cb5/FLAG86024a237 [2020-10-16 12:31:01,168 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 12:31:01,169 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-atomic/szymanski.i [2020-10-16 12:31:01,183 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3b67983a8/e3326ea7f77f47cbb653e15777088cb5/FLAG86024a237 [2020-10-16 12:31:01,445 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3b67983a8/e3326ea7f77f47cbb653e15777088cb5 [2020-10-16 12:31:01,453 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 12:31:01,454 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 12:31:01,455 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 12:31:01,455 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 12:31:01,459 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 12:31:01,460 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:31:01" (1/1) ... [2020-10-16 12:31:01,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15c0b671 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:31:01, skipping insertion in model container [2020-10-16 12:31:01,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:31:01" (1/1) ... [2020-10-16 12:31:01,470 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 12:31:01,521 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 12:31:02,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:31:02,012 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 12:31:02,052 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:31:02,126 INFO L208 MainTranslator]: Completed translation [2020-10-16 12:31:02,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:31:02 WrapperNode [2020-10-16 12:31:02,127 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 12:31:02,127 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 12:31:02,128 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 12:31:02,128 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 12:31:02,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:31:02" (1/1) ... [2020-10-16 12:31:02,152 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:31:02" (1/1) ... [2020-10-16 12:31:02,174 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 12:31:02,174 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 12:31:02,174 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 12:31:02,174 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 12:31:02,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:31:02" (1/1) ... [2020-10-16 12:31:02,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:31:02" (1/1) ... [2020-10-16 12:31:02,187 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:31:02" (1/1) ... [2020-10-16 12:31:02,187 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:31:02" (1/1) ... [2020-10-16 12:31:02,193 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:31:02" (1/1) ... [2020-10-16 12:31:02,199 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:31:02" (1/1) ... [2020-10-16 12:31:02,202 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:31:02" (1/1) ... [2020-10-16 12:31:02,205 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 12:31:02,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 12:31:02,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 12:31:02,206 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 12:31:02,206 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:31:02" (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 12:31:02,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 12:31:02,263 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-10-16 12:31:02,263 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-10-16 12:31:02,263 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-16 12:31:02,264 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-16 12:31:02,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 12:31:02,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 12:31:02,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 12:31:02,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 12:31:02,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 12:31:02,266 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 12:31:02,581 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 12:31:02,581 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-10-16 12:31:02,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:31:02 BoogieIcfgContainer [2020-10-16 12:31:02,584 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 12:31:02,586 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 12:31:02,586 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 12:31:02,589 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 12:31:02,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:31:01" (1/3) ... [2020-10-16 12:31:02,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c5587d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:31:02, skipping insertion in model container [2020-10-16 12:31:02,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:31:02" (2/3) ... [2020-10-16 12:31:02,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c5587d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:31:02, skipping insertion in model container [2020-10-16 12:31:02,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:31:02" (3/3) ... [2020-10-16 12:31:02,593 INFO L111 eAbstractionObserver]: Analyzing ICFG szymanski.i [2020-10-16 12:31:02,609 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 12:31:02,610 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 12:31:02,618 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-16 12:31:02,619 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 12:31:02,651 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:02,651 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:02,651 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:02,652 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:02,654 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:02,654 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:02,655 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:02,656 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:02,656 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:02,656 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:02,658 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:02,658 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:02,662 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:02,663 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:02,663 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:02,663 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:02,668 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:02,669 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:02,669 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:02,669 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:02,678 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-16 12:31:02,693 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-16 12:31:02,717 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 12:31:02,718 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 12:31:02,718 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 12:31:02,718 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 12:31:02,718 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 12:31:02,719 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 12:31:02,719 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 12:31:02,719 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 12:31:02,734 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 12:31:02,735 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 87 transitions, 196 flow [2020-10-16 12:31:02,738 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 87 transitions, 196 flow [2020-10-16 12:31:02,740 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 72 places, 87 transitions, 196 flow [2020-10-16 12:31:02,810 INFO L129 PetriNetUnfolder]: 21/87 cut-off events. [2020-10-16 12:31:02,811 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-16 12:31:02,816 INFO L80 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 87 events. 21/87 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 96 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 65. Up to 3 conditions per place. [2020-10-16 12:31:02,820 INFO L117 LiptonReduction]: Number of co-enabled transitions 2160 [2020-10-16 12:31:03,579 INFO L132 LiptonReduction]: Checked pairs total: 5621 [2020-10-16 12:31:03,579 INFO L134 LiptonReduction]: Total number of compositions: 40 [2020-10-16 12:31:03,586 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 46 places, 59 transitions, 140 flow [2020-10-16 12:31:03,623 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 509 states. [2020-10-16 12:31:03,626 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states. [2020-10-16 12:31:03,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 12:31:03,634 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:31:03,635 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:31:03,636 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:31:03,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:31:03,642 INFO L82 PathProgramCache]: Analyzing trace with hash -223988154, now seen corresponding path program 1 times [2020-10-16 12:31:03,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:31:03,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128533941] [2020-10-16 12:31:03,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:31:03,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:31:03,842 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 12:31:03,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128533941] [2020-10-16 12:31:03,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:31:03,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:31:03,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1283244234] [2020-10-16 12:31:03,846 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:31:03,850 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:31:03,864 INFO L258 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-16 12:31:03,864 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:31:03,869 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:31:03,870 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-16 12:31:03,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:31:03,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-16 12:31:03,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 12:31:03,887 INFO L87 Difference]: Start difference. First operand 509 states. Second operand 2 states. [2020-10-16 12:31:03,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:31:03,919 INFO L93 Difference]: Finished difference Result 509 states and 1466 transitions. [2020-10-16 12:31:03,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-16 12:31:03,921 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-16 12:31:03,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:31:03,941 INFO L225 Difference]: With dead ends: 509 [2020-10-16 12:31:03,941 INFO L226 Difference]: Without dead ends: 470 [2020-10-16 12:31:03,943 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 12:31:03,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2020-10-16 12:31:04,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 470. [2020-10-16 12:31:04,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 470 states. [2020-10-16 12:31:04,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 1363 transitions. [2020-10-16 12:31:04,065 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 1363 transitions. Word has length 8 [2020-10-16 12:31:04,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:31:04,065 INFO L481 AbstractCegarLoop]: Abstraction has 470 states and 1363 transitions. [2020-10-16 12:31:04,065 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-16 12:31:04,065 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 1363 transitions. [2020-10-16 12:31:04,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 12:31:04,068 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:31:04,068 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:31:04,069 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 12:31:04,070 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:31:04,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:31:04,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1417283260, now seen corresponding path program 1 times [2020-10-16 12:31:04,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:31:04,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697899613] [2020-10-16 12:31:04,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:31:04,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:31:04,162 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 12:31:04,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697899613] [2020-10-16 12:31:04,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:31:04,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:31:04,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1176667336] [2020-10-16 12:31:04,164 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:31:04,164 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:31:04,165 INFO L258 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-10-16 12:31:04,166 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:31:04,166 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:31:04,168 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:31:04,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:31:04,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:31:04,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:31:04,169 INFO L87 Difference]: Start difference. First operand 470 states and 1363 transitions. Second operand 3 states. [2020-10-16 12:31:04,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:31:04,201 INFO L93 Difference]: Finished difference Result 481 states and 1359 transitions. [2020-10-16 12:31:04,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:31:04,202 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-16 12:31:04,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:31:04,206 INFO L225 Difference]: With dead ends: 481 [2020-10-16 12:31:04,206 INFO L226 Difference]: Without dead ends: 391 [2020-10-16 12:31:04,207 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 12:31:04,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2020-10-16 12:31:04,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 373. [2020-10-16 12:31:04,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2020-10-16 12:31:04,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 1071 transitions. [2020-10-16 12:31:04,235 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 1071 transitions. Word has length 10 [2020-10-16 12:31:04,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:31:04,235 INFO L481 AbstractCegarLoop]: Abstraction has 373 states and 1071 transitions. [2020-10-16 12:31:04,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:31:04,236 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 1071 transitions. [2020-10-16 12:31:04,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 12:31:04,238 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:31:04,238 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:31:04,238 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 12:31:04,239 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:31:04,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:31:04,239 INFO L82 PathProgramCache]: Analyzing trace with hash -2015895147, now seen corresponding path program 1 times [2020-10-16 12:31:04,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:31:04,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554542946] [2020-10-16 12:31:04,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:31:04,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:31:04,339 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 12:31:04,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554542946] [2020-10-16 12:31:04,340 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:31:04,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:31:04,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [653160268] [2020-10-16 12:31:04,341 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:31:04,342 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:31:04,343 INFO L258 McrAutomatonBuilder]: Finished intersection with 13 states and 12 transitions. [2020-10-16 12:31:04,343 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:31:04,343 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:31:04,344 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:31:04,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:31:04,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:31:04,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:31:04,345 INFO L87 Difference]: Start difference. First operand 373 states and 1071 transitions. Second operand 3 states. [2020-10-16 12:31:04,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:31:04,367 INFO L93 Difference]: Finished difference Result 360 states and 1018 transitions. [2020-10-16 12:31:04,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:31:04,368 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-16 12:31:04,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:31:04,371 INFO L225 Difference]: With dead ends: 360 [2020-10-16 12:31:04,371 INFO L226 Difference]: Without dead ends: 264 [2020-10-16 12:31:04,372 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 12:31:04,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-10-16 12:31:04,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2020-10-16 12:31:04,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-10-16 12:31:04,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 749 transitions. [2020-10-16 12:31:04,385 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 749 transitions. Word has length 12 [2020-10-16 12:31:04,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:31:04,386 INFO L481 AbstractCegarLoop]: Abstraction has 264 states and 749 transitions. [2020-10-16 12:31:04,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:31:04,387 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 749 transitions. [2020-10-16 12:31:04,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-16 12:31:04,390 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:31:04,390 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:31:04,390 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 12:31:04,390 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:31:04,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:31:04,391 INFO L82 PathProgramCache]: Analyzing trace with hash 573136511, now seen corresponding path program 1 times [2020-10-16 12:31:04,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:31:04,393 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232056373] [2020-10-16 12:31:04,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:31:04,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:31:04,430 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 12:31:04,430 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232056373] [2020-10-16 12:31:04,431 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:31:04,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:31:04,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1423374693] [2020-10-16 12:31:04,431 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:31:04,434 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:31:04,437 INFO L258 McrAutomatonBuilder]: Finished intersection with 27 states and 32 transitions. [2020-10-16 12:31:04,437 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:31:04,457 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:31:04,458 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:31:04,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:31:04,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:31:04,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:31:04,459 INFO L87 Difference]: Start difference. First operand 264 states and 749 transitions. Second operand 3 states. [2020-10-16 12:31:04,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:31:04,497 INFO L93 Difference]: Finished difference Result 292 states and 809 transitions. [2020-10-16 12:31:04,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:31:04,497 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-16 12:31:04,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:31:04,500 INFO L225 Difference]: With dead ends: 292 [2020-10-16 12:31:04,500 INFO L226 Difference]: Without dead ends: 280 [2020-10-16 12:31:04,501 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 12:31:04,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-10-16 12:31:04,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2020-10-16 12:31:04,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-10-16 12:31:04,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 773 transitions. [2020-10-16 12:31:04,512 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 773 transitions. Word has length 19 [2020-10-16 12:31:04,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:31:04,512 INFO L481 AbstractCegarLoop]: Abstraction has 280 states and 773 transitions. [2020-10-16 12:31:04,513 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:31:04,513 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 773 transitions. [2020-10-16 12:31:04,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-16 12:31:04,538 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:31:04,538 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:31:04,538 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 12:31:04,538 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:31:04,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:31:04,539 INFO L82 PathProgramCache]: Analyzing trace with hash -1551241601, now seen corresponding path program 2 times [2020-10-16 12:31:04,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:31:04,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396152030] [2020-10-16 12:31:04,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:31:04,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:31:04,605 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 12:31:04,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396152030] [2020-10-16 12:31:04,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:31:04,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:31:04,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [817811432] [2020-10-16 12:31:04,607 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:31:04,608 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:31:04,612 INFO L258 McrAutomatonBuilder]: Finished intersection with 27 states and 32 transitions. [2020-10-16 12:31:04,612 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:31:04,624 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [5523#(<= 2 ~flag2~0)] [2020-10-16 12:31:04,624 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:31:04,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:31:04,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:31:04,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:31:04,625 INFO L87 Difference]: Start difference. First operand 280 states and 773 transitions. Second operand 4 states. [2020-10-16 12:31:04,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:31:04,706 INFO L93 Difference]: Finished difference Result 308 states and 807 transitions. [2020-10-16 12:31:04,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:31:04,706 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-16 12:31:04,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:31:04,708 INFO L225 Difference]: With dead ends: 308 [2020-10-16 12:31:04,708 INFO L226 Difference]: Without dead ends: 152 [2020-10-16 12:31:04,708 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 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 12:31:04,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-10-16 12:31:04,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 148. [2020-10-16 12:31:04,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-10-16 12:31:04,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 324 transitions. [2020-10-16 12:31:04,714 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 324 transitions. Word has length 19 [2020-10-16 12:31:04,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:31:04,714 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 324 transitions. [2020-10-16 12:31:04,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:31:04,715 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 324 transitions. [2020-10-16 12:31:04,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-16 12:31:04,715 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:31:04,716 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:31:04,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 12:31:04,716 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:31:04,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:31:04,716 INFO L82 PathProgramCache]: Analyzing trace with hash 926221059, now seen corresponding path program 3 times [2020-10-16 12:31:04,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:31:04,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259463310] [2020-10-16 12:31:04,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:31:04,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:31:04,745 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 12:31:04,745 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259463310] [2020-10-16 12:31:04,745 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:31:04,746 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:31:04,746 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1336210784] [2020-10-16 12:31:04,746 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:31:04,748 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:31:04,750 INFO L258 McrAutomatonBuilder]: Finished intersection with 29 states and 36 transitions. [2020-10-16 12:31:04,750 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:31:04,759 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:31:04,759 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:31:04,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:31:04,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:31:04,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:31:04,760 INFO L87 Difference]: Start difference. First operand 148 states and 324 transitions. Second operand 3 states. [2020-10-16 12:31:04,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:31:04,786 INFO L93 Difference]: Finished difference Result 144 states and 307 transitions. [2020-10-16 12:31:04,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:31:04,787 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-16 12:31:04,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:31:04,789 INFO L225 Difference]: With dead ends: 144 [2020-10-16 12:31:04,790 INFO L226 Difference]: Without dead ends: 116 [2020-10-16 12:31:04,790 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 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 12:31:04,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-16 12:31:04,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2020-10-16 12:31:04,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-10-16 12:31:04,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 236 transitions. [2020-10-16 12:31:04,795 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 236 transitions. Word has length 19 [2020-10-16 12:31:04,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:31:04,795 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 236 transitions. [2020-10-16 12:31:04,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:31:04,795 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 236 transitions. [2020-10-16 12:31:04,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-16 12:31:04,796 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:31:04,796 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:31:04,796 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 12:31:04,796 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:31:04,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:31:04,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1185214475, now seen corresponding path program 4 times [2020-10-16 12:31:04,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:31:04,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753686511] [2020-10-16 12:31:04,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:31:04,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:31:04,828 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 12:31:04,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753686511] [2020-10-16 12:31:04,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:31:04,828 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:31:04,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1408049035] [2020-10-16 12:31:04,829 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:31:04,830 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:31:04,834 INFO L258 McrAutomatonBuilder]: Finished intersection with 41 states and 60 transitions. [2020-10-16 12:31:04,834 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:31:04,853 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:31:04,854 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:31:04,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:31:04,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:31:04,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:31:04,855 INFO L87 Difference]: Start difference. First operand 116 states and 236 transitions. Second operand 3 states. [2020-10-16 12:31:04,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:31:04,871 INFO L93 Difference]: Finished difference Result 66 states and 133 transitions. [2020-10-16 12:31:04,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:31:04,872 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-16 12:31:04,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:31:04,872 INFO L225 Difference]: With dead ends: 66 [2020-10-16 12:31:04,872 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 12:31:04,873 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 21 SyntacticMatches, 1 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 12:31:04,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 12:31:04,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 12:31:04,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 12:31:04,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 12:31:04,875 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-10-16 12:31:04,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:31:04,875 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 12:31:04,875 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:31:04,875 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 12:31:04,875 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 12:31:04,876 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 12:31:04,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:31:04 BasicIcfg [2020-10-16 12:31:04,879 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 12:31:04,884 INFO L168 Benchmark]: Toolchain (without parser) took 3427.16 ms. Allocated memory was 146.8 MB in the beginning and 248.5 MB in the end (delta: 101.7 MB). Free memory was 100.0 MB in the beginning and 169.4 MB in the end (delta: -69.4 MB). Peak memory consumption was 32.4 MB. Max. memory is 7.1 GB. [2020-10-16 12:31:04,891 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 146.8 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 12:31:04,892 INFO L168 Benchmark]: CACSL2BoogieTranslator took 671.90 ms. Allocated memory was 146.8 MB in the beginning and 202.9 MB in the end (delta: 56.1 MB). Free memory was 99.8 MB in the beginning and 161.8 MB in the end (delta: -62.0 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2020-10-16 12:31:04,893 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.47 ms. Allocated memory is still 202.9 MB. Free memory was 161.8 MB in the beginning and 159.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:31:04,894 INFO L168 Benchmark]: Boogie Preprocessor took 30.84 ms. Allocated memory is still 202.9 MB. Free memory was 159.8 MB in the beginning and 157.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:31:04,895 INFO L168 Benchmark]: RCFGBuilder took 378.73 ms. Allocated memory is still 202.9 MB. Free memory was 157.8 MB in the beginning and 135.4 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-10-16 12:31:04,898 INFO L168 Benchmark]: TraceAbstraction took 2293.74 ms. Allocated memory was 202.9 MB in the beginning and 248.5 MB in the end (delta: 45.6 MB). Free memory was 134.7 MB in the beginning and 169.4 MB in the end (delta: -34.6 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:31:04,906 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 146.8 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 671.90 ms. Allocated memory was 146.8 MB in the beginning and 202.9 MB in the end (delta: 56.1 MB). Free memory was 99.8 MB in the beginning and 161.8 MB in the end (delta: -62.0 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 46.47 ms. Allocated memory is still 202.9 MB. Free memory was 161.8 MB in the beginning and 159.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.84 ms. Allocated memory is still 202.9 MB. Free memory was 159.8 MB in the beginning and 157.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 378.73 ms. Allocated memory is still 202.9 MB. Free memory was 157.8 MB in the beginning and 135.4 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2293.74 ms. Allocated memory was 202.9 MB in the beginning and 248.5 MB in the end (delta: 45.6 MB). Free memory was 134.7 MB in the beginning and 169.4 MB in the end (delta: -34.6 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 839 VarBasedMoverChecksPositive, 41 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 246 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 0.8s, 72 PlacesBefore, 46 PlacesAfterwards, 87 TransitionsBefore, 59 TransitionsAfterwards, 2160 CoEnabledTransitionPairs, 4 FixpointIterations, 16 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 40 TotalNumberOfCompositions, 5621 MoverChecksTotal - PositiveResult [Line: 702]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 686]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 66 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.1s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.9s, HoareTripleCheckerStatistics: 348 SDtfs, 142 SDslu, 155 SDs, 0 SdLazy, 89 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=509occurred 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, 22 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 2127 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...